Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Mar. 02, 2015	Jun. 27, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	UACL
Entity Registrant Name	Universal Truckload Services, Inc.
Entity Central Index Key	0001308208
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		29,997,784
Entity Public Float			$ 199.7

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 8,001	$ 10,223
Marketable securities	14,309	11,626
Accounts receivable-net of allowance for doubtful accounts of $5,207 and $2,688, respectively	151,107	132,001
Other receivables	13,856	17,966
Due from affiliates	1,562	2,283
Prepaid income taxes	2,719	7,988
Prepaid expenses and other	19,340	16,426
Deferred income taxes	5,386	4,876
Total current assets	216,280	203,389
Property and equipment, net	178,069	142,656
Goodwill	74,484	74,589
Intangible assets-net of accumulated amortization of $34,340 and $24,345, respectively	53,820	62,807
Other assets	6,361	6,695
Total assets	529,014	490,136
Current liabilities:
Accounts payable	57,448	46,487
Due to affiliates	2,896	3,618
Accrued expenses and other current liabilities	22,341	21,072
Insurance and claims	20,704	22,719
Current maturities of capital lease obligations	1,051	1,592
Current portion of long-term debt	9,593	5,482
Total current liabilities	114,033	100,970
Long-term liabilities:
Long-term debt	225,705	232,018
Capital lease obligations, net of current maturities	1,980	3,051
Deferred income taxes	45,883	43,748
Other long-term liabilities	4,252	4,784
Total long-term liabilities	277,820	283,601
Shareholders' equity:
Common stock, no par value. Authorized 100,000,000 shares; 30,856,506 and 30,746,067 shares issued; 29,997,784 and 30,114,324 shares outstanding, respectively	30,857	30,746
Paid-in capital	2,448	1,074
Treasury stock, at cost; 858,722 and 631,743 shares, respectively	(14,953)	(9,322)
Retained earnings	117,913	80,952
Accumulated other comprehensive income:
Unrealized holding gain on available-for-sale securities, net of income taxes of $1,642 and $1,433, respectively	2,888	2,476
Foreign currency translation adjustments	(1,992)	(361)
Total shareholders' equity	137,161	105,565
Total liabilities and shareholders' equity	$ 529,014	$ 490,136

Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,207	$ 2,688
Intangible assets, accumulated amortization	34,340	24,345
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	30,856,506	30,746,067
Common stock, shares outstanding	29,997,784	30,114,324
Treasury stock, shares	858,722	631,743
Income tax expense on unrealized holding gain on available-for-sale securities	$ 1,642	$ 1,433

Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating revenues:
Transportation services, including related party amounts of $138, $195 and $298, respectively	$ 769,308	$ 706,998	$ 741,650
Value-added services	284,496	195,086	174,975
Intermodal services, including related party amounts of $170, $9,605 and $2,346, respectively	137,717	131,408	120,381
Total operating revenues	1,191,521	1,033,492	1,037,006
Operating expenses:
Purchased transportation and equipment rent, including related party amounts of $930, $311 and $285, respectively	615,327	560,024	592,493
Direct personnel and related benefits, including related party amounts of $16,623, $14,398 and $14,410, respectively	205,905	178,441	163,069
Commission expense	43,922	39,248	42,157
Operating expenses (exclusive of items shown separately), including related party amounts of $1,233, $1,590 and $3,623, respectively	115,154	79,263	71,117
Occupancy expense, including related party amounts of $10,472, $11,352 and $10,787, respectively	26,520	20,049	19,275
Selling, general, and administrative, including related party amounts of $3,736, $3,617 and $3,829, respectively	44,814	33,046	41,159
Insurance and claims, including related party amounts of $18,102, $16,949 and $17,842, respectively	25,991	19,242	20,342
Depreciation and amortization	33,053	19,686	18,237
Total operating expenses	1,110,686	948,999	967,849
Income from operations	80,835	84,493	69,157
Interest income	46	130	241
Interest expense	(8,229)	(4,166)	(4,224)
Other non-operating income	447	459	2,778
Income before provision for income taxes	73,099	80,916	67,952
Provision for income taxes	27,729	30,344	20,264
Net income	45,370	50,572	47,688
Earnings per common share:
Basic	$ 1.51	$ 1.68	$ 1.59
Diluted	$ 1.51	$ 1.68	$ 1.59
Weighted average number of common shares outstanding:
Basic	30,013	30,064	30,032
Diluted	30,044	30,160	30,036
Dividends paid per common share	$ 0.28	$ 0.14
Pre-merger dividends paid per common share			$ 1.00
Pro Forma earnings per common share-"C" corporation status (unaudited):
Pro Forma provision for income taxes due to LINC Logistics Company conversion to "C" corporation			$ 11,059
Earnings per common share:
Basic			$ 1.22
Diluted			$ 1.22

Consolidated Statements of Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Transportation services, related party amounts	$ 138	$ 195	$ 298
Intermodal services, related party amounts	170	9,605	2,346
Operating expenses, related party amounts	1,233	1,590	3,623
Purchased transportation [Member]
Operating expenses, related party amounts	930	311	285
Direct personnel and related benefits [Member]
Operating expenses, related party amounts	16,623	14,398	14,410
Operating expenses [Member]
Operating expenses, related party amounts	1,233	1,590	3,623
Occupancy expense [Member]
Operating expenses, related party amounts	10,472	11,352	10,787
Selling, general, and administrative [Member]
Operating expenses, related party amounts	3,736	3,617	3,829
Insurance and claims [Member]
Operating expenses, related party amounts	$ 18,102	$ 16,949	$ 17,842

Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 45,370	$ 50,572	$ 47,688
Other comprehensive income (loss):
Unrealized holding gains on available-for-sale investments arising during the period, net of income taxes	412	1,546	566
Realized gains on available-for-sale investments reclassified into income, net of income taxes		(68)	(1,176)
Foreign currency translation adjustments	(1,631)	(227)	312
Total other comprehensive income (loss)	(1,219)	1,251	(298)
Total comprehensive income	$ 44,151	$ 51,823	$ 47,390

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References+ Details

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 45,370	$ 50,572	$ 47,688
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	33,053	19,686	18,237
Gain on sale of marketable equity securities		(107)	(2,189)
Loss (gain) on disposal of property and equipment	233	(117)	45
Amortization of debt issuance costs	693
Change in the fair value of acquisition related contingent consideration			16
Non-cash charges incurred from LINC			2,442
Stock-based compensation	1,485	585	586
Provision for doubtful accounts	3,504	1,515	1,190
Deferred income taxes	1,433	2,495	4,389
Change in assets and liabilities:
Trade and other accounts receivable	(19,857)	767	(8,076)
Prepaid income taxes, prepaid expenses and other assets	984	(3,594)	1,276
Accounts payable, accrued expenses, insurance and claims and other current liabilities	13,027	(15,152)	7,922
Due to/from affiliates, net	(1)	837	(3,769)
Other long-term liabilities	(532)	103	646
Net cash provided by operating activities	79,392	57,590	70,403
Cash flows from investing activities:
Capital expenditures	(59,784)	(17,035)	(29,566)
Proceeds from the sale of property and equipment	1,326	1,790	987
Purchases of marketable securities	(2,063)	(24)	(19)
Proceeds from sale of marketable securities		520	7,500
Affiliate notes receivables-LINC			(5,000)
Proceeds from affiliate notes receivable-LINC			5,000
Acquisitions of businesses	(2,648)	(121,057)	(850)
Net cash used in investing activities	(63,169)	(135,806)	(21,948)
Cash flows from financing activities:
Proceeds from borrowing-revolving debt	134,228	48,218	94,871
Repayments of debt-revolving debt	(134,358)	(52,218)	(44,871)
Proceeds from borrowing-term debt	2,500	95,500	82,000
Repayments of debt-term debt	(4,572)		(69,061)
Proceeds from borrowing-UBS facility	791
Repayments of debt-UBS facility	(791)
Distributions to LINC shareholders			(95,985)
Dividends paid	(8,409)	(4,209)
Pre-merger dividends paid			(15,499)
Payment of capital lease obligations	(1,349)	(42)
Purchases of treasury stock	(5,631)	(6)	(991)
Payment of earnout obligations related to acquisitions		(24)	(206)
Capitalized financing costs		(1,230)	(1,752)
Net cash provided by (used in) financing activities	(17,591)	85,989	(51,494)
Effect of exchange rate changes on cash and cash equivalents	(854)	(104)	82
Net increase (decrease) in cash	(2,222)	7,669	(2,957)
Cash and cash equivalents-beginning of period	10,223	2,554	5,511
Cash and cash equivalents-end of period	8,001	10,223	2,554
Supplemental cash flow information:
Cash paid for interest	7,379	3,595	2,990
Cash paid for income taxes	20,833	31,236	12,759
Distributions to LINC shareholders:
Purchase adjustment pursuant to merger agreement			10,102
Distribution for shareholder state tax withholding			383
Dividends paid	8,409	4,209
Net cash paid			95,985
Acquisition of businesses:
Fair value of assets acquired, net of cash	1,270	156,741	1,100
Liabilities assumed		(33,738)
Fair value of acquisition obligations		(2,196)	(250)
Payment of acquisition obligations	1,378	250
Net cash paid for acquisition of businesses	2,648	121,057	850
LINC Logistics Company [Member]
Cash flows from financing activities:
Dividends paid			(58,500)
Distributions to LINC shareholders:
Payment of dividend payable			27,000
Dividends paid			$ 58,500

Consolidated Statements of Shareholders' Equity (USD $) In Thousands	Total	Common stock [Member]	Paid-in capital [Member]	Treasury stock [Member]	Retained earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balances at Dec. 31, 2011	$ 94,871	$ 30,649	$ 65,387	$ (8,325)	$ 5,998	$ 1,162
Net income	47,688				47,688
Comprehensive income (loss)	(298)					(298)
Dividends paid	(15,499)				(15,499)
Dividends declared by LINC	(58,500)				(58,500)
LINC distribution for state tax withholding	(383)				(383)
LINC purchase adjustment	(10,102)		(10,102)
Termination of LINC's S-Corp status			(55,285)		55,285
Stock based compensation	586	36	550
Purchases of treasury stock	(991)			(991)
Balances at Dec. 31, 2012	57,372	30,685	550	(9,316)	34,589	864
Net income	50,572				50,572
Comprehensive income (loss)	1,251					1,251
Dividends paid	(4,209)				(4,209)
Issuance of common stock		25	(25)
Stock based compensation	585	36	549
Purchases of treasury stock	(6)			(6)
Balances at Dec. 31, 2013	105,565	30,746	1,074	(9,322)	80,952	2,115
Net income	45,370				45,370
Comprehensive income (loss)	(1,219)					(1,219)
Dividends paid	(8,409)				(8,409)
Issuance of common stock		20	(20)
Stock based compensation	1,485	91	1,394
Purchases of treasury stock	(5,631)			(5,631)
Balances at Dec. 31, 2014	$ 137,161	$ 30,857	$ 2,448	$ (14,953)	$ 117,913	$ 896

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(1)

Summary of Significant Accounting Policies

(a)

Business

Universal Truckload Services, Inc., referred to herein as Universal, or us, we or the Company, through its subsidiaries, is a leading asset-light provider of customized transportation and logistics solutions throughout the United States, Mexico, Canada, and Colombia. We provide our customers with supply chain solutions that can be scaled to meet their changing demands. We offer our customers with a broad array of services across their entire supply chain, including transportation, value-added, and intermodal services. Our customized solutions and flexible business model are designed to provide us with a highly variable cost.

(b)

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. Effective on December 31, 2014, the Company executed a plan to reduce the number of its subsidiaries, re-naming and re-branding our principal surviving operating subsidiaries. The organizational streamlining plan included the statutory merger of certain subsidiaries, along with the transfer of certain business units between subsidiaries. At December 31, 2014, we conducted our operation through the following operating and support subsidiaries: Cavalry Logistics, LLC, Diversified Contract Services, Inc., Flint Special Services, Inc., LGSI Equipment of Indiana, LLC, LINC Logistics, LLC, LINC Ontario, Ltd., Logistics Insight Corp., Logistics Insight Corporation S. de R.L. de C.V., Logistics Insight GmbH, Louisiana Transportation, Inc., Mason Dixon Intermodal, Inc., ULINC Staffing de Mexico, S. de R.L. de C.V., Universal Dedicated, Inc., Universal Logistics Solutions International, Inc., Universal Logistics Solutions Canada, Ltd., Universal Management Services, Inc., Universal Specialized, Inc., Universal Truckload, Inc., UT Rent A Car, Inc., UTS Realty, LLC, UTSI Finance, Inc., Westport Holding, LLC and Westport Axle Corporation. All significant intercompany accounts and transactions have been eliminated.

Through December 31, 2004, Universal was a wholly-owned subsidiary of CenTra, Inc. On December 31, 2004, CenTra distributed all of Universal’s common stock to Matthew T. Moroun and a trust controlled by Manuel J. Moroun, collectively the Morouns, the sole shareholders of CenTra, Inc. CenTra, Inc., its subsidiaries and affiliates are referred to as “CenTra.” Subsequent to the initial public offering in 2005, the Morouns retained and continue to hold a controlling interest in Universal. The accompanying consolidated financial statements present the historical financial position, results of operations, and cash flows of the Company and are not necessarily indicative of what the financial position, results of operations, or cash flows would have been had the Company operated as an unaffiliated company during the periods presented.

Our fiscal year consists of four quarters, each with thirteen weeks.

(c)

Use of Estimates

The preparation of the consolidated financial statements requires management of the Company to make a number of estimates and assumptions related to the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the period. Significant items subject to such estimates and assumptions include the fair value of assets and liabilities acquired in business combinations; carrying amounts of property and equipment and intangible assets; marketable securities; valuation allowances for receivables; and liabilities related to insurance and claim costs. Actual results could differ from those estimates.

(d)

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and short-term, highly liquid investments with an original maturity of three months or less.

It is our policy to record checks issued in excess of funds on deposit as accounts payable for balance sheet presentation, and include the changes in these positions as cash flows from operating activities in the statements of cash flows. At December 31, 2014, accounts payable included reclassification of checks issued in excess of funds on deposit in the amount of $13.4 million. At December 31, 2013, funds on deposit were in excess of checks issued and no reclassification was necessary. The change in the amount of checks issued in excess of funds on deposit of $13.4 million, $(13.4) million, and $3.4 million for 2014, 2013 and 2012, respectively, is included in cash flows from operating activities in the statements of cash flows as a change in accounts payable, accrued expenses and other current liabilities.

(e)

Marketable Securities

At December 31, 2014 and 2013, marketable securities, all of which are available-for-sale, consist of common and preferred stocks. Marketable securities are carried at fair value, with unrealized gains and losses, net of related income taxes, reported as accumulated other comprehensive income (loss), except for losses from impairments which are determined to be other-than-temporary. Realized gains and losses, and declines in value judged to be other-than-temporary on available-for-sale securities are included in the determination of net income and are included in other non-operating income (expense), at which time the average cost basis of these securities are adjusted to fair value. Fair values are based on quoted market prices at the reporting date. Interest and dividends on available-for-sale securities are included in other non-operating income (expense). During the year ended December 31, 2014, the Company made purchases of securities totaling $2.1 million, but did not sell any marketable securities. During the years ended December 31, 2013 and 2012, we received proceeds of $0.5 million and $7.5 million from the sale of marketable securities with a combined cost of $0.4 million $5.3 million resulting in a realized gain of $0.1 million and $2.2 million, respectively.

The cost, gross unrealized holding gains, gross unrealized holding losses, and fair value of available-for-sale securities by type were as follows (in thousands):


	Cost		Gross unrealized holding gains		Gross unrealized holding (losses)			Fair Value
At December 31, 2014
Equity Securities	$	9,779	$	4,825	$	(295	)	$	14,309

At December 31, 2013
Equity Securities	$	7,717	$	3,974	$	(65	)	$	11,626

Included in equity securities at December 31, 2014 were securities with a book basis of $1.8 million and a cumulative loss position of $0.3 million, the impairment of which we consider to be temporary. We consider several factors in determining as to whether declines in value are judged to be temporary or other-than-temporary, including the severity and duration of the decline, the financial condition and near-term prospects of the specific issuers and the industries in which they operate, and our intent and ability to hold these securities. We may incur future impairment charges if declines in market values continue and/or worsen and impairments are no longer considered temporary.

The fair value and gross unrealized holding losses of our marketable securities that are not deemed to be other-than-temporarily impaired aggregated by type and length of time they have been in a continuous unrealized loss position were as follows (in thousands):


	Less than 12 Months				12 Months or Greater				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
At December 31, 2014
Equity securities	$	1,380	$	197	$	146	$	98	$	1,526	$	295

At December 31, 2013
Equity securities	$	167	$	3	$	289	$	62	$	456	$	65

At December 31, 2014, our portfolio of equity securities in a continuous loss position, the impairment of which we consider to be temporary, consists primarily of common stocks in the oil and gas, banking, communications, steel, and transportation industries. The fair value and unrealized losses are distributed in sixteen publicly traded companies, with no single industry or company representing a material or concentrated unrealized loss. We have evaluated the near-term prospects of the various industries, as well as the specific issuers within our portfolio, in relation to the severity and duration of the impairments, and based on that evaluation, and our ability and intent to hold these investments for a reasonable period of time to allow for a recovery of fair value, we do not consider these investments to be other-than-temporarily impaired at December 31, 2014.

The Company from time to time invests cash in excess of its current needs in marketable securities, much of which is held in equity securities, which are actively traded on public exchanges. It is our philosophy to minimize the risk of capital loss without foregoing the potential for capital appreciation through investing in value-and-income oriented investments. However, holding equity securities subjects us to fluctuations in the market value of our investment portfolio based on current market prices, and a decline in market prices or other unstable market conditions could cause a loss in the value of our marketable securities classified as available-for-sale.

(f)

Accounts Receivable

Accounts receivable are recorded at the net invoiced amount, net of an allowance for doubtful accounts, and do not bear interest. They include unbilled amounts for services rendered in the respective period but not yet billed to the customer until a future date, which typically occurs within one month. In order to reflect customer receivables at their estimated net realizable value, we record charges against revenue based upon current information. These charges generally arise from rate changes, errors, and revenue adjustments that may arise from contract disputes or differences in calculation methods employed by the customer. The allowance for doubtful accounts is our best estimate of the amount of probable credit losses in our existing accounts receivable. We determine the allowance based on historical write-off experience and the aging of our outstanding accounts receivable. Balances are considered past due based on invoiced terms. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. We do not have any off-balance-sheet credit exposure related to our customers. Accounts receivable from affiliates are shown separately and include trade receivables from the sale of services to affiliates.

(g)

Inventories

Included in prepaid expenses and other is inventory used in a portion of our value-added service operations. Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out method. Provisions for excess and obsolete inventories are based on our assessment of excess and obsolete inventory on a product-by-product basis.

At December 31, inventory consists of the following (in thousands):


	2014		2013
Raw materials and supplies	$	6,903	$	3,197
Finished goods		1,347		428

	$	8,250	$	3,625

(h)

Property and Equipment

Property and equipment, including leasehold improvements, are carried at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets as follows:


Description	Life in Years
Transportation equipment		5 - 15
Other operating assets		3 - 15
Information technology equipment		2 - 5
Buildings and related assets		10 - 39

The amounts recorded for depreciation expense were $23.1 million, $17.6 million, and $15.2 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Tire repairs, replacement tires, replacement batteries, consumable tools used in our logistics services, and routine repairs and maintenance on vehicles are expensed as incurred. Parts and fuel inventories are included in prepaid expenses and other. We capitalize certain costs associated with vehicle repairs and maintenance that materially extend the life or increase the value of the vehicle or pool of vehicles.

(i)

Intangible Assets

Intangible assets subject to amortization consist of customer contracts and agent and customer relationships that have been acquired in business combinations. These assets are amortized either over the period of economic benefit or on a straight-line basis over the estimated useful lives of the related intangible asset. The estimated useful lives of these intangible assets range from one to nineteen years. The weighted average amortization period for customer contracts is approximately two years, and the weighted average amortization period for agent and customer relationships is approximately fifteen years. Collectively, the weighted average amortization period of assets subject to amortization is approximately twelve years. The useful lives of acquired trademarks are indefinite and, therefore, not subject to amortization.

Our identifiable intangible assets as of December 31, 2014 and 2013 are as follows (in thousands):


	2014			2013
Indefinite Lived Intangibles:
Trademarks	$	2,500		$	2,500

Definite Lived Intangibles:
Agent and customer relationships		65,060			64,052
Customer contracts		20,600			20,600
Less: accumulated amortization		(34,340	)		(24,345	)

Intangible assets, net	$	51,320		$	60,307

Total Identifiable Intangible Assets	$	53,820		$	62,807

Estimated amortization expense by year is as follows (in thousands):


2015	$	9,102
2016		7,423
2017		5,995
2018		2,519
2019		2,254
Thereafter		24,027

Total	$	51,320

The amounts recorded for amortization expense were $9.9 million, $2.1 million, and $3.0 million for the years ended December 31, 2014, 2013 and 2012, respectively.

(j)

Goodwill

Goodwill represents the excess purchase price over the fair value of assets acquired in connection with the Company’s acquisitions. Under FASB Accounting Standards Codification, or ASC, Topic 805 “Business Combinations”, we are required to test goodwill for impairment annually (in our third fiscal quarter) or more frequently, whenever events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit with goodwill below its carrying amount. We have the option to first assess qualitative factors such as current performance and overall economic conditions to determine whether or not it is necessary to perform a two-step quantitative goodwill impairment test. If we choose that option, we would not be required perform Step 1 of the test unless we determine that, based on a qualitative assessment, it is more likely than not that the fair value of a reporting unit is less than its carrying value. If we determine that it is more likely than not, or if we choose not to perform a qualitative assessment, then we may then proceed with Step 1 of the two-step impairment test. In the quantitative goodwill test, a company compares the carrying value of a reporting unit to its fair value. If the carrying value of the reporting unit exceeds the estimated fair value, a second step is performed, which compares the implied fair value of goodwill to the carrying value, to determine the amount of impairment. During the third quarter of 2014, we completed our goodwill impairment testing by performing a qualitative assessment. Based on the results of this test, no impairment loss was recognized.

The changes in the carrying amount of goodwill for the years ended December 31, 2014 and 2013 are as follows (in thousands):


Balance as of January 1, 2013	$	17,965
Westport Acquisition		56,624

Balance as of December 31, 2013		74,589
Bull’s Eye acquisitions		163
Westport adjustments		(268	)

Balance as of December 31, 2014	$	74,484

At both December 31, 2014 and 2013, $18.2 million and $18.0 million of goodwill was recorded in our transportation segment, respectively. At December 31, 2014 and 2013, $56.3 million and $56.6 million of goodwill was recorded in our logistics segment, respectively.

(k)

Long-Lived Assets

Long-lived assets, other than goodwill, and indefinite lived intangibles such as property and equipment and purchased intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require a long-lived asset to be tested for possible impairment, we first compare the undiscounted cash flows expected to be generated by a long-lived asset to its carrying value. If the carrying value of the long-lived asset is deemed to not be recoverable on an undiscounted cash flow basis, an impairment charge is recognized to the extent that the carrying value exceeds its fair value. Fair value is determined through various valuation techniques including discounted cash flow models, quoted market prices and independent third-party appraisals. Changes in management’s judgment relating to salvage values and/ or estimated useful lives could result in greater or lesser annual depreciation expense or impairment charges in the future. Indefinite lived intangibles are tested for impairment annually by comparing the carrying value of the assets to their fair value.

(l)

Contingent Consideration

Contingent consideration arrangements granted in connection with a business combination are evaluated to determine whether contingent consideration is, in substance, additional purchase price of an acquired enterprise or compensation for services, use of property or profit sharing. Additional purchase price is added to the fair value of consideration transferred in the business combination and compensation is included in operating expenses in the period it is incurred. Contingent consideration is remeasured to fair value at each reporting date until the contingency is resolved.

(m)

Fair Value of Financial Instruments

For cash equivalents, accounts receivables, accounts payable, and accrued expenses, the carrying amounts are reasonable estimates of fair value as the assets are readily redeemable or short-term in nature and the liabilities are short-term in nature. Marketable securities, consisting primarily of equity securities, are carried at fair market value as determined by quoted market prices. Our senior debt and line of credit consists of variable rate borrowings. The carrying value of these borrowings approximates fair value because the applicable interest rates are adjusted frequently based on short-term market rates.

(n)

Deferred Compensation

Deferred compensation relates to our bonus plans. Annual bonuses may be awarded to certain operating, sales and management personnel based on overall Company performance and achievement of specific employee or departmental objectives. Such bonuses are typically paid in annual installments over a five-year period. All bonus amounts earned by and due to employees in the current year are included in accrued expenses and other current liabilities. Those that are payable in subsequent years are included in other long-term liabilities.

(o)

Closing Costs

Our customers may discontinue or alter their business activity in a location earlier than anticipated, prompting us to exit a customer-dedicated facility. We recognize exit costs associated with operations that close or are identified for closure as an accrued liability in the Consolidated Balance Sheets. Such charges include lease termination costs, employee termination charges, asset impairment charges, and other exit-related costs associated with a plan approved by management. If we close an operating facility before its lease expires, costs to terminate a lease are recognized when an early termination provision is exercised, or we record a liability for non-cancellable lease obligations based on the fair value of remaining lease payments, reduced by any existing or prospective sublease rentals. Employee termination costs are recognized in the period that the closure is communicated to affected employees. The recognition of exit and disposal charges requires us to make certain assumptions and estimates as to the amount and timing of such charges. Subsequently, adjustments are made for changes in estimates in the period in which the change becomes known.

(p)

Revenue and Related Expenses

We are the primary obligor when rendering transportation services, value-added services and intermodal services, and we assume the corresponding credit risk with customers. We have discretion in setting sales prices and, as a result, our earnings may vary. In addition, we have discretion to choose and negotiate terms with our multiple suppliers for the services ordered by our customers. This includes owner-operators with whom we contract to deliver our transportation services. As such, revenue and the related purchased transportation and commissions are recognized on a gross basis when persuasive evidence of an arrangement exists, delivery has occurred at the receiver’s location or for service arrangements after the related services have been rendered, the revenue and related expenses are fixed or determinable and collectability is reasonably assured. Fuel surcharges, where separately identifiable, of $119.7 million, $118.6 million and $115.2 million for the years ended December 31, 2014, 2013 and 2012, respectively, are included in operating revenues.

Revenues and associated costs for the sales of axles and machined components are recognized when title has passed and the risks and rewards of ownership are transferred, which is at the time of shipment.

Our customer contracts could involve multiple revenue-generating activities performed for the same customer. When several contracts are entered into with the same customer in a short period of time, we evaluate whether these contracts should be considered as a single, multiple element contract for revenue recognition purposes. Criteria we consider that may result in the aggregation of contracts include whether such contracts are actually entered into within a short period of time, whether services in multiple contracts are interrelated, or if the negotiation and terms of one contract show or include consideration for another contract or contracts. Our current contracts have not been required to be aggregated, as they are negotiated independently on a standalone basis. Our customers typically choose their vendor and award business at the conclusion of a competitive bidding process for each service. As a result, although we evaluate customer purchase orders and agreements for multiple elements and aggregation of individual contracts into a multiple element arrangement, our current contracts do not meet the criteria required for multiple element contract accounting.

(q)

Insurance & Claims

Insurance and claims expense represents charges for premiums and the accruals made for claims within our self-insured retention amounts. The accruals are primarily related to auto liability, general liability, cargo and equipment damage, and service failure claims. A liability is recognized for the estimated cost of all self-insured claims including an estimate of incurred but not reported claims based on historical experience and for claims expected to exceed our policy limits. We may also make accruals for personal injury and property damage to third parties, and workers’ compensation claims if a claim exceeds our insurance coverage. Such accruals are based upon individual cases and estimates of ultimate losses, incurred but not reported losses, and losses arising from known claims ultimately settling in excess of insurance coverage using loss development factors based upon industry data and past experience. Since the reported accrual is an estimate, the ultimate liability may be different from the amount recorded. If adjustments to previously established accruals are required, such amounts are included in operating expenses in the current period. We maintain insurance with licensed insurance carriers. Legal expenses related to auto liability claims are covered under our insurance policy. We are responsible for all other legal expenses related to claims.

In brokerage arrangements, our exposure to liability associated with accidents incurred by other third-party carriers, who haul freight on our behalf, is reduced by various factors including the extent to which the third party providers maintain their own insurance coverage.

Our insurance expense varies primarily based upon the frequency and severity of our accident experience, insurance rates, coverage limits, and self-insured retention amounts.

(r)

Stock Based Compensation

We record compensation expense for the grant of stock based awards. Compensation expense is measured at the grant date, based on the calculated fair value of the award, and recognized as an expense over the requisite service period (generally the vesting period of the grant). No stock based awards were granted in 2014 or 2013. During 2012, the Company granted 178,137 shares of restricted stock to certain employees with a market price at the date of grant of $16.42.

(s)

Income Taxes

Deferred income taxes are provided for temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

We are no longer subject to U.S. federal income tax examinations by tax authorities for years before 2011. In addition, we file income tax returns in various state, local and foreign jurisdictions. Historically, we have been responsible for filing separate state, local and foreign income tax returns for our self and our subsidiaries. We are no longer subject to state or foreign jurisdiction income tax examinations for years before 2010 and 2009, respectively.

We recognize the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. We recognize interest related to unrecognized tax benefits in income tax expense and penalties in other operating expenses.

(t)

Foreign Currency Translation

The financial statements of the Company’s subsidiaries operating in Mexico and Canada are prepared to conform to U.S. GAAP and translated into U.S. Dollars by applying a current exchange rate. The local currency has been determined to be the functional currency. Items appearing in the Consolidated Statements of Income are translated using average exchange rates during each period. Assets and liabilities of international operations are translated at period-end exchange rates. Translation gains and losses are reported in accumulated other comprehensive income (loss) as a component of shareholders’ equity.

(u)

Segment Information

We report our financial results in two reportable segments, the transportation segment and the logistics segment, based on the nature of the underlying customer commitment and the types of investments required to support these commitments. This presentation reflects the manner in which management evaluates our operating segments, including an evaluation of economic characteristics and applicable aggregation criteria.

Operations aggregated in our transportation segment are associated with individual freight shipments coordinated by our agents, company-managed terminals and specialized services operations. In contrast, operations aggregated in our logistics segment deliver value-added services or transportation services to specific customers on a dedicated basis, generally pursuant to contract terms of one year or longer. Other non-reportable operating segments are comprised of the Company’s subsidiaries that provide support services to other subsidiaries and to owner-operators, including shop maintenance and equipment leasing.

(v)

Concentrations of Credit Risk

Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash and cash equivalents, marketable securities and accounts receivable. We maintain our cash and cash equivalents and marketable securities with high quality financial institutions. We perform ongoing credit evaluations of our customers and generally do not require collateral. Our customers are generally concentrated in the automotive, wind energy, building materials, machinery and metals industries. During the fiscal years ended December 31, 2014, 2013 and 2012, aggregate sales in the automotive industry totaled 28.4%, 33.8% and 30.7% of revenue, respectively. In 2014, General Motors accounted for approximately 9.7% of our total operating revenues and sales to our top 10 customers, including General Motors, totaled 36.1%.

(w)

Unaudited Pro Forma Earnings Per Share

Prior to its acquisition by Universal on October 1, 2012, LINC was an S Corporation for U.S. federal income tax purposes. As a result, LINC had no U.S. federal income tax liability, but had state and local liabilities in certain jurisdictions attributable to earnings as an S Corporation. Pro forma basic and diluted earnings per share have been computed to give effect to the termination of LINC’s S Corporation status and acquisition by Universal, which changes the provision for income taxes for each period presented. We assume a blended statutory federal, state and local rate of 38.5% in 2012.

The following table sets forth a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per share for the periods presented (in thousands, except per share data):


	2012
Net income	$	47,688
Pro forma provision for income taxes due to LINC’s conversion to a “C” corporation		11,059

Pro forma net income	$	36,629

Pro forma earnings per common share:
Basic	$	1.22
Diluted	$	1.22
Weighted average number of common shares outstanding:
Basic		30,032
Diluted		30,036

(x)

Recent Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-08, Presentation of Financial Statements and Property, Plant, and Equipment, which provided new guidance related to reporting discontinued operations. This new standard raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The new standard is effective for fiscal years beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. The adoption of this guidance is not expected to have a significant impact on the Company’s financial condition, results of operations, or cash flow.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provided new accounting guidance related to revenue recognition. The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and will supersede most of the existing revenue recognition guidance, including industry-specific guidance. The core principle of ASU 2014-09 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the new guidance, an entity will (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the contract’s performance obligations; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 applies to all contracts with customers except those that are within the scope of other topics in the FASB Accounting Standards Codification. The new guidance is effective for annual reporting periods (including interim periods within those periods)

beginning after December 15, 2016 for public companies. Early adoption is not permitted. Entities have the option of using either a full retrospective or modified approach to adopt ASU 2014-09. We are evaluating the effect, if any, that adopting this new accounting standard will have on our consolidated financial statements and related disclosures.

- Definition

The entire disclosure for all significant accounting policies of the reporting entity.

+ References+ Details

Business Combinations

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combinations

(2)

Business Combinations

Acquisitions Accounted for Using the Purchase Method

In September 2014, we acquired certain assets of Bull’s-Eye Express, Inc. and its several affiliated companies, or Bull’s-Eye, based in Albany, Missouri through a Limited Asset Purchase Agreement for $1.6 million. Bull’s-Eye is a regional provider of industrial equipment transportation and freight consolidation services and is strategically positioned to service customers in the Midwest. As of December 31, 2014, $1.3 million of the purchase price was paid in cash and an additional $0.3 million consisted of partial forgiveness of a debt due to us. Pursuant to the acquisition, Bull’s-Eye operates as part of Universal Truckload, Inc.

The pro forma effect of this acquisition has been omitted, as the effect is immaterial to the Company’s results of operations, financial position and cash flows. The allocation of the purchase price is as follows (in thousands):


Intangible assets	$	1,007
Property and equipment		400
Goodwill (tax deductible)		163

	$	1,570

The intangible assets acquired represent the acquired companies’ customer relationships and are being amortized over a period of seven years.

The operating results of the Bull’s-Eye have been included in the Consolidated Statements of Income since its acquisition date; however, it has not been separately disclosed as it is deemed immaterial.

Goodwill represents the excess of purchase price over the estimated fair value assigned to the net tangible and identifiable intangible assets of the businesses acquired, and the expected synergies to be achieved through the integration of the acquired companies into Universal.

In December 2013, we acquired Westport USA Holding, LLC (“Westport”) for $123.0 million in cash, subject to a working capital adjustment after closing. Pursuant to the terms of the Unit Purchase Agreement, Westport was acquired on a cash-free, debt-free basis. Based in Louisville, Kentucky, Westport provides value-added warehousing and component distribution services to U.S. manufacturers of Class 4-8 trucks, RVs and super-duty trucks. Westport also machines and distributes steering knuckles and axle components for the automotive industry. During 2014, we finalized the working capital adjustment and made a final payment of $1.4 million in cash. We used available cash and borrowings under our Revolving Credit and Term Loan Agreement to finance the acquisition (see Note 6 “Debt”).

The acquisition of Westport was accounted for in accordance with ASC 805 “Business Combinations.” Assets acquired and liabilities assumed were recorded at their estimated fair values as of December 19, 2013, with the remaining unallocated purchase price recorded as goodwill. The goodwill recorded is included in our logistics segment, and is non-deductible for income tax purposes. The estimated useful lives of these intangible assets ranged from five months to nineteen years. The final allocation of the purchase price is as follows (in thousands):


Current assets	$	24,492
Property and equipment		17,081
Goodwill		56,356
Intangible assets		57,800
Other long-term assets		474
Current liabilities		(2,932	)
Capital lease obligations		(5,164	)
Deferred tax liabilities, net		(25,083	)

	$	123,024

The intangible assets acquired represent Westport’s acquired trademarks, customer contracts and customer relationships. The acquired customer contracts and customer relationships are being amortized over a period from five months to nineteen years. The useful lives of acquired trademarks are indefinite and, therefore, not subject to amortization.

The following unaudited pro forma consolidated results of operations for the twelve-month periods ended December 31, 2013 and 2012 present consolidated information of the Company as if Westport was acquired on January 1, 2012 (in thousands, except per share data):


	Pro Forma Twelve Months Ended December 31, 2013		Pro Forma Twelve Months Ended December 31, 2012
Operating revenues	$	1,121,459	$	1,095,393
Operating income	$	93,972	$	66,848
Net Income	$	54,791	$	44,143
Earnings per common share:
Basic	$	1.82	$	1.47
Diluted	$	1.82	$	1.47

The unaudited pro forma consolidated results for the twelve-month periods were prepared using the acquisition method of accounting and are based on the historical financial information of Westport and the Company. The historical financial information has been adjusted to give effect to pro forma adjustments that are: (i) directly attributable to the acquisition, (ii) factually supportable and (iii) expected to have a continuing impact on the combined results. The unaudited pro forma condensed combined financial statements are presented for illustrative purposes and do not purport to represent what the financial position or results of operations would actually have been had we acquired Westport on January 1, 2012.

The acquisition of Westport strategically enhances our customer base by further penetrating industrial markets, specifically to manufacturers of medium and heavy-duty trucks. We believe that Westport’s value-added services and limited capital requirements fit nicely into our business model and long-term growth strategy. The operating results of Westport have been included in the Consolidated Statements of Income since its acquisition date. Included in our operating results during the year ended December 31, 2013 are transaction and other acquisition related costs totaling $0.7 million, which are reflected in selling, general and administrative expenses in the Consolidated Statements of Income.

In May 2012, we acquired certain assets of TFX Incorporated, or TFX, based in Durham, North Carolina through a Limited Asset Purchase Agreement for approximately $1.1 million. TFX is primarily a regional provider of intermodal transportation services strategically positioned to service the primary port areas on the East Coast and the key railheads and major manufacturing centers of the Southern and Midwestern United States. We used available cash and cash equivalents to finance acquisition. Pursuant to the acquisition, TFX operates as part of Mason Dixon Intermodal, Inc.


Intangible assets	$	657
Property and equipment		200
Goodwill (tax deductible)		243

	$	1,100

The intangible assets acquired represent the acquired companies’ customer relationships and are being amortized over a period of seven years.

The operating results of the TFX have been included in the Consolidated Statements of Income since its acquisition date; however, it has not been separately disclosed as it is deemed immaterial.

Acquisition Accounted for Between Entities Under Common Control

In October 2012, we completed the acquisition of LINC whereby each outstanding share of LINC common stock was converted into the right to receive consideration consisting of 0.700 of a share of common stock of the Company and cash in lieu of fractional shares. This resulted in the issuance of 14,527,332 shares of the Company’s common stock. Our majority shareholders beneficially owned, in the aggregate, 100% of the common stock of LINC. The transaction was accounted for using the guidance for transactions between entities under common control as described in ASC Topic 805—“Business Combinations”, which resulted in the Company presenting the transaction at carryover basis and prior periods were retroactively restated.

Upon closing the merger with LINC on October 1, 2012, we borrowed approximately $149.1 million to repay LINC’s outstanding indebtedness and dividends payable. During 2012, we also expensed transaction fees and other costs related to the merger totaling $8.4 million, which are reflected in selling, general and administrative expenses in the Consolidated Statements of Income.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

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+ Details

Accounts Receivable

12 Months Ended

Dec. 31, 2014

Text Block [Abstract]

Accounts Receivable

(3)

Accounts Receivable

Accounts receivable amounts appearing in the financial statements include both billed and unbilled receivables. We bill customers in accordance with contract terms, which may result in a brief timing difference between when revenue is recognized and when invoices are rendered. Unbilled receivables, which usually are billed within one month, totaled $11.6 million and $12.8 million at December 31, 2014 and 2013, respectively.

Accounts receivable are presented net of an allowance for doubtful accounts. Following is a summary of the activity in the allowance for doubtful accounts for the years ended December 31 (in thousands):


	2014			2013			2012
Balance at beginning of year	$	2,688		$	2,515		$	3,874
Provision for doubtful accounts		3,504			1,515			1,190
Acquisition of businesses		—			163			—
Uncollectible accounts written off		(985	)		(1,505	)		(2,549	)

Balance at end of year	$	5,207		$	2,688		$	2,515

Property and Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

(4)

Property and Equipment

Property and equipment at December 31 consists of the following (in thousands):


	2014			2013
Transportation equipment	$	186,344		$	151,395
Land, buildings and related assets		67,472			68,653
Other operating assets		54,433			43,624
Information technology equipment		15,261			14,427
Construction in process		4,169			2,163

		327,679			280,262
Less accumulated depreciation		(149,610	)		(137,606	)

Total	$	178,069		$	142,656

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

+ References+ Details

Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

(5)

Accrued Expenses and Other Current Liabilities

Accrued expenses consist of the following items at December 31 (in thousands):


	2014		2013
Payroll related items	$	8,827	$	8,080
Driver escrow liabilities		4,519		6,099
Commissions, taxes and other		8,995		6,893

Total	$	22,341	$	21,072

Debt

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Debt

(6)

Debt

Debt is comprised of the following (in thousands):


	Interest Rates at December 31, 2014	December 31,
	Interest Rates at December 31, 2014	2014		2013
Outstanding Debt:
Syndicated credit facility
$120 million revolving credit facility	LIBOR + 1.85%	$	59,500	$	60,000
Swing Line sub-facility	Prime + 0.85%		370		—
$60 million equipment financing facility	LIBOR + 2.35%		55,428		57,500
$50 million term loan	LIBOR + 3.00%		50,000		50,000
$70 million term loan B	LIBOR + 3.00%		70,000		70,000
UBS secured borrowing facility	LIBOR + 1.10%		—		—

			235,298		237,500
Less current portion			9,593		5,482

Total long-term debt		$	225,705	$	232,018

Syndicated credit facility

On December 19, 2013, we entered into a Second Amendment (the “Amendment”) to our Revolving Credit and Term Loan Agreement dated August 28, 2012, (the “Credit Agreement”) with and among the lenders parties thereto and Comerica Bank, as administrative agent, to provide for aggregate borrowing facilities of up to $300 million. The Amendment modifies the Credit Agreement to allow for additional borrowings of $70 million under a new term loan and a $10 million increase in the revolving credit facility. The Credit Agreement, as amended, consists of a $120 million revolving credit facility (which amount may be increased by up to $20 million upon request of the Company and approval of the lenders), a $60 million equipment credit facility, a $50 million term loan, and a $70 million term loan B. Additionally, the Credit Agreement provides for up to $5 million in letters of credit, which letters of credit reduce availability under the revolving credit facility.

On December 19, 2013, we used available cash, $70 million in proceeds from the new term loan, $25 million in proceeds from our revolving credit facility, and $25.5 million in additional borrowings from our existing equipment credit facility to pay the aggregate cash consideration and expenses related to the acquisition of Westport (see Note 2 “Business Combinations”).

$120 million Revolving Credit Facility

The revolving credit facility is available to refinance existing indebtedness and to finance working capital through, and mature on, August 28, 2017. Two interest rate options are applicable to advances borrowed pursuant to the facility: Eurodollar-based advances and base rate advances. Eurodollar-based advances bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin, which varies from 1.35% to 2.10% based on our ratio of total debt to earnings before interest, taxes, depreciation and amortization (“EBITDA”), as defined. As an alternative, base rate advances bear interest at a base rate, as defined, plus an applicable margin, which also varies based on our ratio of total debt to EBITDA in a range from 0.35% to 1.10%. The base rate is the greater of the prime rate announced by Comerica Bank, the federal funds effective rate plus 1.0%, or the daily adjusting LIBOR rate plus 1.0%. At December 31, 2014, interest accrued at 2.02% based on 30-day LIBOR.

To support daily borrowing and other operating requirements, the revolving credit facility contains a $10.0 million Swing Line sub-facility and a $5.0 million letter of credit sub-facility. On June 3, 2013, we executed an amendment to our Revolving Credit and Term Loan Agreement (the “First Amendment”) which split the availability on the Swing Line between two existing lenders, Comerica Bank and KeyBank. The SwingLine was split to provide for borrowings of up to $7.0 million from Comerica Bank and $3.0 million from KeyBank, so long as the Comerica Bank and KeyBank advances do not exceed $10.0 million in the aggregate. Swing Line borrowings incur interest at either the base rate plus the applicable margin or, alternatively, at a quoted rate offered by the applicable Swing Line lender in its sole discretion. At December 31, 2014, there was $0.4 million outstanding under the Swing Line and interest accrued at 4.10% based on the prime rate. We did not have any letters of credit issued against the revolving credit facility.

Interest on the unpaid balance of all revolving credit facility and swing line base rate advances is payable quarterly in arrears commencing on October 1, 2012, and on the first day of each October, January, April and July thereafter. Interest on the unpaid balance of each Eurodollar-based advance of the revolving credit facility is payable on the last day of the applicable Eurodollar interest period. Interest on the unpaid balance of each quoted rate based advance of the swing line is payable on the last day of the applicable quoted rate interest period.

The revolving credit facility is subject to a facility fee, which is payable quarterly in arrears, of either 0.25% or 0.50%, depending on our ratio of total debt to EBITDA. Other than in connection with Eurodollar-based advances or quoted rate advances that are paid off and terminated prior to an applicable interest period, there are no premiums or penalties resulting from prepayment. Borrowings outstanding at any time under the revolving credit facility are limited to the value of eligible accounts receivable of our principal operating subsidiaries, pursuant to a monthly borrowing base certificate. At December 31, 2014, our $59.5 million revolver advance was secured by, among other assets, net eligible accounts receivable totaling $122.4 million, of which, $104.1 million were available for borrowing against pursuant to the agreement.

$60 million Equipment Credit Facility

The equipment credit facility is available to refinance existing indebtedness and to finance capital expenditures including in connection with acquisitions. Borrowings under the equipment credit facility may be made until August 28, 2015, and such borrowings shall be repaid in quarterly installments equal to 1/28^th of the aggregate amount of borrowings under the equipment credit facility commencing on January 1, 2014.

The two interest rate options that apply to revolving credit facility advances also apply to equipment credit facility advances. Eurodollar-based advances bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin, which varies from 1.60% to 2.60% based on our ratio of total debt to EBITDA. Base rate advances bear interest at a base rate, as defined, plus an applicable margin, which also varies based on our ratio of total debt to EBITDA in a range from 0.60% to 1.60%. The equipment credit facility is subject to an unused fee, which is payable quarterly in arrears, of 0.50%. At December 31, 2014, interest accrued at 2.52% based on 30-day LIBOR.

Interest on the unpaid balance of all equipment credit facility base rate advances is payable quarterly in arrears commencing on October 1, 2012, and on the first day of each October, January, April and July thereafter. Interest on the unpaid balance of each Eurodollar-based advance of the equipment credit facility is payable on the last day of the applicable Eurodollar interest period.

$50 million Term Loan

Proceeds of the term loan were advanced on October 1, 2012 and used to refinance existing indebtedness of LINC. The outstanding principal balance is due on August 28, 2017, to the extent not already reduced by mandatory or optional prepayments. The applicable interest rate on the effective date of the term loan indebtedness was the base rate. Base rate advances bear interest at a defined base rate plus an applicable margin which varies from 1.50% to 2.25%, based on our ratio of total debt to EBITDA. Thereafter, we may convert base rate advances to Eurodollar-based advances, which bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin which varies from 2.50% to 3.25%, based on our ratio of total debt to EBITDA. At December 31, 2014, interest accrued at 3.17% based on 30-day LIBOR.

Interest on the unpaid principal of all term loan base rate advances is payable quarterly in arrears commencing on October 1, 2012, and on the first day of each October, January, April and July thereafter. Interest on the unpaid principal of each Eurodollar-based advance of the term loan is payable on the last day of the applicable Eurodollar interest period.

$70 million Term Loan B

Proceeds of the term loan were advanced on December 19, 2013 and used to finance the acquisition of Westport. The outstanding principal balance is due on August 28, 2017, to the extent not already reduced by mandatory or optional prepayments. The applicable interest rate on the effective date of the term loan indebtedness was the base rate. Base rate advances bear interest at a defined base rate plus an applicable margin which varies from 1.50% to 2.25%, based on our ratio of total debt to EBITDA. Thereafter, we may convert base rate advances to Eurodollar-based advances, which bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin which varies from 2.50% to 3.25%, based on our ratio of total debt to EBITDA. At December 31, 2014, interest accrued at 3.17% based on 30-day LIBOR.

Interest on the unpaid principal of all term loan base rate advances is payable quarterly in arrears commencing on January 1, 2014, and on the first day of each January, April, July and October thereafter. Interest on the unpaid principal of each Eurodollar-based advance of the term loan is payable on the last day of the applicable Eurodollar interest period.

The Credit Agreement requires us to repay the borrowings made under the term loan facilities and the equipment credit facility as follows: 50% (which percentage shall be reduced to 0% subject to the Company attaining a certain leverage ratio) of our annual excess cash flow, as defined; 100% of net cash proceeds of certain asset sales; and 100% of certain insurance and condemnation proceeds. Mandatory prepayments of the term loans were $1.0 million as of December 31, 2014. We may voluntarily repay outstanding loans under each of the facilities at any time, subject to certain customary “breakage” costs with respect to LIBOR-based borrowings. In addition, we may elect to permanently terminate or reduce all or a portion of the revolving credit facility.

All obligations under the Credit Agreement are unconditionally guaranteed by the Company’s material U.S. subsidiaries, and the obligations of the Company and such subsidiaries under the Credit Agreement and such guarantees are secured by, subject to certain exceptions, substantially all of their assets. The Credit Agreement also may, in certain circumstances, limit our ability to pay dividends or distributions. The Credit Agreement includes annual, quarterly and ad hoc financial reporting requirements and financial covenants requiring the Company to maintain maximum leverage ratios and a minimum fixed charge coverage ratio, as well as customary affirmative and negative covenants and events of default. Specifically, we may not exceed a maximum senior debt to EBITDA ratio, as defined, of 2.5:1 and a maximum total debt to EBITDA ratio, as defined, of 3.0:1. We must also maintain a fixed charge coverage ratio, as defined, of not less than 1.25:1. As of December 31, 2014, the Company was in compliance with its debt covenants.

UBS Secured Borrowing Facility

We also maintain a secured borrowing facility at UBS Financial Services, Inc., or UBS, using our marketable securities as collateral for the short-term line of credit. The line of credit bears an interest rate equal to LIBOR plus 1.10% (effective rate of 1.27% at December 31, 2014), and interest is adjusted and billed monthly. No principal payments are due on the borrowing; however, the line of credit is callable at any time. The amount available under the line of credit is based on a percentage of the market value of the underlying securities. If the equity value in the account falls below the minimum requirement, we must restore the equity value, or UBS may call the line of credit. We did not have any amounts outstanding under our line of credit at December 31, 2014 or 2013, and the maximum available borrowings under the line of credit were $6.9 million and $5.4 million, respectively.

Maturities

The following table reflects the maturities of our principal repayment obligations as of December 31, 2014 (in thousands):


Years Ending December 31	Revolving Credit Facility		Swing Line Sub-Facility		Equipment Financing Facility		Term Loan		Term Loan B		Total
2015	$	—	$	—	$	8,571	$	1,022	$	—	$	9,593
2016		—		—		8,571		—		—		8,571
2017		59,500		370		38,286		48,978		70,000		217,134

Total	$	59,500	$	370	$	55,428	$	50,000	$	70,000	$	235,298

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References+ Details

Fair Value Measurement and Disclosures

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurement and Disclosures

(7)

Fair Value Measurement and Disclosures

ASC Topic 820, “Fair Value Measurements and Disclosures”, defines fair value as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date and expanded disclosures with respect to fair value measurements.

ASC Topic 820 also establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

•

Level 1—Quoted prices in active markets for identical assets or liabilities.

•

Level 2—Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

•

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

We have segregated all financial assets that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below (in thousands):


	December 31, 2014
	Level 1		Level 2		Level 3		Fair Value Measurement
Assets
Cash equivalents	$	21	$	—	$	—	$	21
Marketable securities		14,309		—		—		14,309

Total Assets	$	14,330	$	—	$	—	$	14,330


	December 31, 2013
	Level 1		Level 2		Level 3		Fair Value Measurement
Assets
Cash equivalents	$	117	$	—	$	—	$	117
Marketable securities		11,626		—		—		11,626

Total Assets	$	11,743	$	—	$	—	$	11,743

The valuation techniques used to measure fair value for the items in the tables above are as follows:

•

Cash equivalents—This category consists of money market funds which are listed as Level 1 assets and measured at fair value based on quoted prices for identical instruments in active markets.

•

Marketable securities—Marketable securities represent equity securities, which consist of common and preferred stocks, are actively traded on public exchanges and are listed as Level 1 assets. Fair value was measured based on quoted prices for these securities in active markets.

Our senior debt and line of credit consists of variable rate borrowings. We categorize borrowings under the credit agreement and line of credit as Level 2 in the fair value hierarchy. The carrying value of these borrowings approximate fair value because the applicable interest rates are adjusted frequently based on short-term market rates.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References+ Details

Transactions with Affiliates

12 Months Ended

Dec. 31, 2014

Transactions with Affiliates

(8)

Transactions with Affiliates

Through December 31, 2004, Universal was a wholly-owned subsidiary of CenTra, Inc. On December 31, 2004, CenTra distributed all of Universal’s common stock to the shareholders of CenTra. Subsequent to our initial public offering in 2005, our majority shareholders retained and continue to hold a controlling interest in Universal. CenTra provides administrative support services to Universal, including legal, human resources, and tax services. The cost of these services is based on the actual or estimated utilization of the specific service. Management believes these charges are reasonable. However, the costs of these services charged to Universal are not necessarily indicative of the costs that would have been incurred if Universal had internally performed or acquired these services as a separate unaffiliated entity.

In addition to the administrative support services described above, Universal purchases other services from affiliates. Following is a schedule of cost incurred and included in operating expenses for services provided by affiliates for the years ended December 31 (in thousands):


	2014		2013		2012
Administrative support services	$	2,459	$	2,367	$	2,535
Truck fueling and maintenance		1,320		1,774		3,850
Real estate rent and related costs		10,472		11,352		10,787
Insurance and employee benefit plans		36,073		32,710		33,657
Contracted transportation services		930		311		285

Total	$	51,254	$	48,514	$	51,114

In connection with our transportation services, we also routinely cross the Ambassador Bridge between Detroit, Michigan and Windsor, Ontario, and we pay tolls and other fees to certain related entities which are under common control with CenTra. CenTra also charges us for the direct variable cost of various maintenance, fueling and other operational support costs for services delivered at their trucking terminals that are geographically remote from our own facilities. Such activities are billed when incurred, paid on a routine basis, and reflect actual labor utilization, repair parts costs or quantities of fuel purchased.

A significant number of our transportation and logistics service operations are located at facilities leased from affiliates. At 43 facilities, occupancy is based on either month-to-month or contractual, multi-year lease arrangements which are billed and paid monthly. Leasing properties provided by an affiliate that owns a substantial commercial property portfolio affords us significant operating flexibility. However, we are not limited to such arrangements. See Note 10, “Leases” for further information regarding the cost of leased properties.

We purchase workers’ compensation, property and casualty, cargo, warehousing and other general liability insurance from an insurance company controlled by our majority shareholders. Our employee health care benefits and 401(k) programs are also provided by this affiliate.

Other services from affiliates, including leased real estate, insurance and employee benefit plans, and contracted transportation services, are delivered to us on a per-transaction-basis or pursuant to separate contractual arrangements provided in the ordinary course of business. At December 31, 2014 and 2013, amounts due to affiliates were $2.9 million and $3.6 million, respectively. In our Consolidated Balance Sheets, we record our insured claims liability and the related recovery from an affiliate insurance provider in insurance and claims, and other receivables. At December 31, 2014 and 2013, there were $10.7 million and $15.8 million, respectively, included in each of these accounts for insured claims.

We incurred approximately $0.5 million of costs in both 2014 and 2013 relating to underwritten public offerings of our common stock. Under the Amended and Restated Registration Rights Agreement, dated as of July 25, 2012 with our majority shareholders, we were responsible to pay for the cost of the offering. After deducting the underwriting discount and offering expenses, we did not have any remaining proceeds from the sales of our common stock.

During 2014, we purchased ten used tractors and one used trailer from an affiliate totaling approximately $0.8 million. During 2013, we purchased 39 used tractors from an affiliate for approximately $1.6 million.

We have retained the law firm of Sullivan Hincks & Conway to provide legal services. Daniel C. Sullivan, a member of our Board, is a partner at Sullivan Hincks & Conway. Not included in the table above are amounts paid for legal services during 2014, 2013 and 2012 were $92,000, $7,000 and $144,000, respectively.

Services provided by Universal to Affiliates

We may assist our affiliates with selected transportation and logistics services in connection with their specific customer contracts or purchase orders. Truck fueling and administrative expenses are presented net in operating expense. Following is a schedule of services provided to CenTra and affiliates for the years ended December 31 (in thousands):


	2014		2013		2012
Transportation and intermodal services	$	308	$	9,800	$	2,644
Truck fueling and maintenance		87		184		227
Administrative and customer support services		71		113		111

Total	$	466	$	10,097	$	2,982

At December 31, 2014 and 2013, amounts due from affiliates were $1.6 million and $2.3 million, respectively.

During 2014, we sold forty-one used trailers to an affiliate for approximately $82,000, and recognized an $82,000 gain on the sale of those trailers.

Also during 2014, we acquired selected assets, operations and businesses in connection with international border crossing freight processing, customs documentation and compliance services from an affiliate for approximately $100,000.

In October 2012, we completed the acquisition of LINC. Our principal shareholders beneficially owned, in the aggregate, 100% of the common stock of LINC. See Note 2 “Business Combinations—Acquisition Accounted for Between Entities Under Common Control”.

On March 12, 2015, we entered into a Service Level Agreement with Data System Services, LLC, a related party, to provide IT infrastructure and services to host our accounting system in a data center environment. Initial setup costs are approximately $0.2 million and recurring annual costs are estimated at $0.2 million, based on our anticipated number of users.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References+ Details

Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

(9)

Income Taxes

A summary of income related to U.S. and non-U.S. operations are as follows (in thousands):


	Year Ended December 31,
	2014		2013		2012
Operations
U.S. Domestic	$	70,079	$	74,697	$	63,427
Foreign		3,020		6,219		4,525

Total pre-tax income	$	73,099	$	80,916	$	67,952

The provision for income taxes attributable to income from continuing operations for the years ended December 31 consists of the following (in thousands):


	2014		2013		2012
Current:
U.S. Federal	$	20,822	$	22,797	$	12,554
State		4,838		3,609		1,740
Foreign		590		1,442		1,586

		26,250		27,848		15,880
Deferred:
U.S. Federal		489		1,922		4,155
State		891		524		354
Foreign		99		50		(125	)

		1,479		2,496		4,384

Total	$	27,729	$	30,344	$	20,264

Deferred income tax assets and liabilities at December 31 consist of the following (in thousands):


	2014						2013
	Current			Long-term			Current			Long-term
Domestic deferred tax assets:
Allowance for doubtful accounts	$	1,391		$	—		$	578		$	—
Other assets		—			3,083			—			1,018
Accrued expenses		5,285			—			5,826			—

Total domestic deferred tax assets		6,676			3,083			6,404			1,018

Domestic deferred tax liabilities:
Prepaid expenses		(1,290	)		—			(1,528	)		—
Marketable securities		—			(1,687	)		—			(1,480	)
Intangible assets		—			(18,404	)		—			(21,248	)
Property and equipment		—			(29,061	)		—			(22,261	)

Total domestic deferred tax liabilities		(1,290	)		(49,152	)		(1,528	)		(44,989	)

Foreign deferred tax asset
Other assets		—			590			—			624
Valuation allowance—foreign		—			(404	)		—			(401	)

Total foreign deferred tax asset		—			186			—			223

Net deferred tax asset (liability)	$	5,386		$	(45,883	)	$	4,876		$	(43,748	)

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the domestic and foreign deferred tax assets will not be realized. The deferred tax assets and liabilities were reviewed separately by jurisdictions when measuring the need for valuation allowances. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income (both ordinary income and taxable capital gains) during the periods in which those temporary differences reverse. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this assessment. Valuation allowances are established when necessary to reduce deferred tax assets when it is more likely than not that a portion or all of the deferred tax assets will not be realized. Based upon the level of historical taxable income, reversal of existing taxable temporary differences, projections for future taxable income over the periods in which the domestic deferred tax assets are expected to reverse, and our ability to generate future capital gains, management believes it is more likely than not that we will realize the benefits of these deductible differences. Thus, no valuation allowance has been established for the domestic deferred tax assets. Based on the anticipated earnings projections of the foreign subsidiaries, management has recorded a full valuation allowance for the deferred tax assets associated with the German subsidiary.

The company has not provided for U.S. income taxes on foreign subsidiaries undistributed earnings since they are expected to be reinvested indefinitely outside the U.S. It is not possible to predict the amount of U.S. income taxes that might be payable if these earnings were eventually repatriated. As of December 31, 2014, the undistributed earnings of foreign subsidiaries was approximately $9.8 million.

The amount of the domestic and foreign deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income are reduced or capital gains contemplated under tax planning strategies are not realized.

Income tax expense attributable to income from continuing operations differs from the statutory rates as follows:


	2014			2013			2012
Federal statutory rate		35	%		35	%		35	%
S-Corp earnings taxed at shareholder level		0	%		0	%		-14	%
Non-deductible (benefit) expense		-2	%		-1	%		3	%
LINC tax status change		0	%		0	%		4	%
State, net of federal benefit		5	%		3	%		2	%
Foreign		0	%		0	%		0	%

Effective tax rate		38	%		37	%		30	%

Prior to LINC’s acquisition by Universal on October 1, 2012, LINC was an S Corporation for U.S. federal income tax purposes. As a result, LINC had no U.S. federal income tax liability, but had state and local liabilities in certain jurisdictions attributable to earnings as an S Corporation. See Note 1(w) “Unaudited Pro Forma Earnings Per Share”. The merger transaction resulted in a termination of the S election for LINC, and LINC is now treated as a C corporation subject to federal income taxes. The tax rate adjustment accounts for the periods before the change in LINC’s federal tax status. Additionally, in connection with the acquisition by a C Corporation, we recorded the federal component of the deferred tax accounts resulting in the recognition of additional income tax expense of $2.5 million.

As of December 31, 2014, the total amount of unrecognized tax benefit representing uncertainty in certain tax positions was $0.4 million. These uncertain tax positions are based on recognition thresholds and measurement attributes for the financial statement recognition and measurements of a tax position taken or expected to be taken in a tax return. Any prospective adjustments to our accrual for uncertain tax positions will be recorded as an increase or decrease to the provision for income taxes and would impact our effective tax rate. At December 31, 2014, there are no positions for which it is reasonably possible that the total amounts of unrecognized tax benefits would significantly increase or decrease within 12 months. As of December 31, 2014, the amount of accrued interest and penalties was $0.1 million and $0.1 million, respectively.

The changes in our gross unrecognized tax benefits during the years ended December 31 are as follows (in thousands):


	2014			2013			2012
Unrecognized tax benefit—beginning of year	$	652		$	741		$	687
Increases related to prior year tax positions		4			137			12
Increases related to current year tax positions		13			15			42
Decreases related to prior year tax positions		(255	)		(241	)		—
Settlements with taxing authorities		—			—			—
Lapse of statutes of limitations		—			—			—

Unrecognized tax benefit—end of year	$	414		$	652		$	741

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References+ Details

Leases

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Leases

(10)

Leases

We lease office space, warehouses, freight distribution centers, terminal yards and equipment under non-cancelable capital and operating lease arrangements. Except where we deliver services within facilities provided by our customers, we lease all warehouse and freight distribution centers used in our logistics operations, often in connection with a specific customer program. Where facilities are substantially dedicated to a single customer and our lease is with an independent property owner, we attempt to align lease terms with the expected duration of the underlying customer program. Except as described in Note 8, “Transactions with Affiliates”, facilities rented from affiliates are generally occupied pursuant to month-to-month lease agreements.

In most cases, we expect our facility leases will be renewed or replaced by other leases in the ordinary course of business. Where possible, we contractually secure the recovery of certain occupancy costs, including rent, during the term of a customer program. Future minimum rental payments pursuant to leases that have an initial or remaining non-cancelable lease term in excess of one year as of December 31, 2014 are as follows (in thousands):


			Operating Leases
Years Ending December 31	Capital Leases		With Affiliates		With Third Parties		Total
2015	$	1,191	$	5,956	$	10,478	$	17,625
2016		988		4,136		4,857		9,981
2017		731		2,904		3,699		7,334
2018		380		810		1,206		2,396
2019		—		338		—		338
Thereafter		—		—		—		—

Total required payments		3,290	$	14,144	$	20,240	$	37,674

Less amounts representing interest (1.4% to 4.7%)		259

Present value of minimum lease payments		3,031
Less current maturities		1,051

	$	1,980

At December 31, 2014, assets under capital leases, consisting primarily of machinery and equipment, had a cost of approximately $6.9 million and accumulated amortization of $0.9 million. At December 31, 2013, assets under capital leases, consisting primarily of machinery and equipment, had a cost of approximately $6.9 million and accumulated amortization of $0.1 million. Included in depreciation and amortization expense in the accompanying Consolidated Statements of Income for the years ended December 31, 2014 and 2013 is amortization expense of $0.8 million and $0.1 million, respectively. There were no assets under capital lease at December 31, 2012.

Rental expense for facilities, vehicles and other equipment leased from third parties under operating leases approximated $21.9 million, $14.4 million and $10.7 million for the years ended December 31, 2014, 2013 and 2012.

- Definition

The entire disclosure for lessor entity's leasing arrangements for operating, capital and leveraged leases.

+ References+ Details

Comprehensive Income

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Comprehensive Income

(11)

Comprehensive Income

Comprehensive income includes the following for the years ended December 31 (in thousands):


	2014			2013			2012
Unrealized holding gains on available-for-sale investments arising during the period:
Gross amount	$	620		$	2,160		$	1,383
Income tax (expense) benefit		(208	)		(614	)		(817	)

Net of tax amount	$	412		$	1,546		$	566

Realized (gains) on available-for-sale investments reclassified into income:
Gross amount	$	—		$	(107	)	$	(2,189	)
Income tax expense		—			39			1,013

Net of tax amount	$	—		$	(68	)	$	(1,176	)

Foreign currency translation adjustments	$	(1,631	)	$	(227	)	$	312

The unrealized holding gains and losses on available-for-sale investments represent mark-to-market adjustments net of related income taxes.

- Definition

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580

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-Glossary Reclassification Adjustments

-URI http://asc.fasb.org/extlink&oid=6522872

+ Details

Retirement Plans

12 Months Ended

Dec. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Retirement Plans

(12)

Retirement Plans

We offer 401(k) defined contribution plans to our employees. The plans are administered by a company controlled by our principal shareholders and include different matching provisions depending on which subsidiary or affiliate is involved. In the plans available to certain employees not subject to collective bargaining agreements, we matched contributions up to $600 annually for each employee who is not considered highly compensated through December 31, 2008, after which some matching contributions were suspended as a response to market conditions at certain subsidiaries. Three other 401(k) plans are provided to employees of specific operations and offer matching contributions that range from zero to $2,080 per participant annually. The total expense for contributions for 401(k) plans, including plans related to collective bargaining agreements, was $0.4 million for the each of the years ended December 31, 2014, 2013 and 2012.

Great American Lines, Inc., a wholly-owned subsidiary of the Company, maintained a Simplified Employee Pension Plan, which is a defined contribution plan and covers all full-time employees. Eligibility requirements include completion of one year of service and attaining the age of 21. Contributions to the plan are at management’s discretion. No contributions were made under this plan for the years ended December 31, 2014, 2013 or 2012.

In connection with a collective bargaining agreement that covered 9 Canadian employees at December 31, 2014, we are required to make defined contributions into the Canada Wide Industrial Pension Plan. At December 31, 2014 and 2013, the required contributions totaled approximately $30,000 and $38,000, respectively.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References+ Details

Stock Based Compensation

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Based Compensation

(13)

Stock Based Compensation

On April 23, 2014, our Board of Directors adopted the 2014 Amended and Restated Stock Incentive Plan, or the Plan. The Plan was approved by our shareholders at the 2014 Annual Meeting and became effective as of the date it was adopted by the Board of Directors. The Plan replaced our 2004 Stock Incentive Plan and carried forward the shares of common stock that remained available for issuance under the 2004 Stock Incentive Plan. The grants may be made in the form of stock options, restricted stock bonuses, restricted stock purchase rights, stock appreciation rights, phantom stock units, restricted stock units or unrestricted common stock. Restricted stock awards currently outstanding under the 2004 Stock Incentive Plan will remain outstanding in accordance with the terms of that plan.

On December 20, 2012, the Company granted 178,137 shares of restricted stock to certain of its employees under the 2004 Stock Incentive Plan. The restricted stock grants vested 20% on December 20, 2012, and an additional 20% will vest on each anniversary of the grant through December 20, 2016, subject to continued employment of the grantee with the Company. A grantee’s vesting may be accelerated under certain conditions, including retirement.

A summary of the status of our non-vested shares as of December 31, 2014, and changes during the year ended December 31, 2014, is presented below:


	Shares			Weighted Average Grant Date Fair Value
Nonvested at January 1, 2014		106,885		$	16.42
Granted		—		$	—
Vested		(90,439	)	$	16.42
Forfeited		—		$	—

Balance at December 31, 2014		16,446		$	16.42

As of December 31, 2014, there was $0.3 million of total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under the Plan. That cost is expected to be recognized over a weighted-average period of 2 years. The total fair value of shares vested during the year ended December 31, 2014 was $1.5 million.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References+ Details

Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

(14)

Commitments and Contingencies

Our principal commitments relate to long-term real estate leases and payment obligations to equipment vendors.

We are involved in certain claims and pending litigation arising from the ordinary conduct of business. We also provide accruals for claims within our self-insured retention amounts. Based on the knowledge of the facts, and in certain cases, opinions of outside counsel, in the Company’s opinion the resolution of these claims and pending litigation will not have a material effect on our financial position, results of operations or cash flows.

At December 31, 2014, approximately 36% of our employees in the United States, Mexico and Canada are subject to collective bargaining agreements that are renegotiated periodically, 20% of which are subject to contracts that expire in 2015.

- Definition

The entire disclosure for commitments and contingencies.

+ References+ Details

Earnings Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

(15)

Earnings Per Share

Basic earnings per common share amounts are based on the weighted average number of common shares outstanding, excluding outstanding non-vested restricted stock. Diluted earnings per common share include dilutive common stock equivalents determined by the treasury stock method. For the years ended December 31, 2014, 2013 and 2012, there were 31,230, 95,656 and 4,597 weighted average non-vested shares of restricted stock, respectively, included in the denominator for the calculation of diluted earnings per share.

- Definition

The entire disclosure for earnings per share.

+ References+ Details

Quarterly Financial Data (unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (unaudited)

(16)

Quarterly Financial Data (unaudited)


	2014
	1^st quarter		2^nd quarter		3^rd quarter		4^th quarter
	(in thousands, except per share information)
Operating revenue	$	279,364	$	307,549	$	302,128	$	302,480
Operating income		14,629		24,413		23,000		18,793
Income before income taxes		13,143		22,075		21,052		16,829
Provision for income taxes		5,019		8,442		7,958		6,310

Net income	$	8,124	$	13,633	$	13,094	$	10,519

Earnings per common share:
Basic	$	0.27	$	0.45	$	0.44	$	0.35
Diluted	$	0.27	$	0.45	$	0.44	$	0.35
Weighted average number of common shares outstanding:
Basic		30,112		30,054		29,947		29,946
Diluted		30,158		30,092		29,982		29,952


	2013
	1^st quarter		2^nd quarter		3^rd quarter		4^th quarter
	(in thousands, except per share information)
Operating revenue	$	248,109	$	264,172	$	261,663	$	259,548
Operating income		19,251		23,629		22,480		19,133
Income before income taxes		18,283		22,828		21,491		18,314
Provision for income taxes		6,909		8,674		7,749		7,012

Net income	$	11,374	$	14,154	$	13,742	$	11,302

Earnings per common share:
Basic	$	0.38	$	0.47	$	0.46	$	0.38
Diluted	$	0.38	$	0.47	$	0.46	$	0.38
Weighted average number of common shares outstanding:
Basic		30,054		30,054		30,065		30,083
Diluted		30,196		30,196		30,118		30,127

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References+ Details

Segment Reporting

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Reporting

(17)

Segment Reporting

The following tables summarize information about our reportable segments as of and for the fiscal years ended December 31, 2014, 2013 and 2012 (in thousands):


2014	Transportation		Logistics		Other			Total
Operating revenues	$	778,603	$	412,507	$	411		$	1,191,521
Eliminated inter-segment revenues		5,160		7,473		—			12,633
Depreciation and amortization		11,256		21,507		290			33,053
Income from operations		34,931		50,892		(4,988	)		80,835
Capital expenditures		16,444		42,413		927			59,784
Total assets		246,190		247,155		35,669			529,014

2013	Transportation		Logistics		Other			Total
Operating revenues	$	705,557	$	327,498	$	437		$	1,033,492
Eliminated inter-segment revenues		679		179		—			858
Depreciation and amortization		11,557		7,861		268			19,686
Income from operations		28,537		58,724		(2,768	)		84,493
Capital expenditures		9,084		6,426		1,525			17,035
Total assets		221,428		229,947		38,761			490,136

2012	Transportation		Logistics		Other			Total
Operating revenues	$	747,313	$	289,268	$	425		$	1,037,006
Eliminated inter-segment revenues		514		83		—			597
Depreciation and amortization		12,066		5,957		214			18,237
Income from operations		30,623		49,497		(10,963	)		69,157
Capital expenditures		15,463		12,927		1,176			29,566
Total assets		226,896		77,563		22,910			327,369

We provide a portfolio of transportation and logistics services to a wide range of customers throughout the United States, Mexico, Canada, and to a lesser extent, Europe and other countries around the world. Revenues for selected services as provided to the chief operating decision maker are as follows (in thousands):


	Year Ended December 31,
	2014		2013		2012
Transportation services	$	769,308	$	706,998	$	741,650
Value-added services		284,496		195,086		174,975
Intermodal services		137,717		131,408		120,381

Total	$	1,191,521	$	1,033,492	$	1,037,006

Revenues are attributed to geographic areas based upon completion of the underlying service at the point of delivery. In some instances, we are paid one rate for “round-trip” services that originate and terminate in Canada, but have destinations in the United States. In those instances we allocate half of the total revenue to Canada and half to the United States (in thousands).


	Year Ended December 31,
	2014		2013		2012
United States	$	1,153,154	$	992,511	$	999,668
Mexico		24,860		23,440		20,266
Canada		9,786		14,029		13,407
Europe		2,419		2,278		2,057
Other		1,302		1,234		1,608

Total	$	1,191,521	$	1,033,492	$	1,037,006

Net long-lived property and equipment assets are presented in the table below (in thousands):


	Year Ended December 31,
	2014		2013
United States	$	172,360	$	134,951
Mexico		5,671		7,640
Canada		38		65

Total	$	178,069	$	142,656

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Business

(a)

Business

Basis of Presentation

(b)

Basis of Presentation

Our fiscal year consists of four quarters, each with thirteen weeks.

Use of Estimates

(c)

Use of Estimates

Cash and Cash Equivalents

(d)

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and short-term, highly liquid investments with an original maturity of three months or less.

Marketable Securities

(e)

Marketable Securities

The cost, gross unrealized holding gains, gross unrealized holding losses, and fair value of available-for-sale securities by type were as follows (in thousands):


	Cost		Gross unrealized holding gains		Gross unrealized holding (losses)			Fair Value
At December 31, 2014
Equity Securities	$	9,779	$	4,825	$	(295	)	$	14,309

At December 31, 2013
Equity Securities	$	7,717	$	3,974	$	(65	)	$	11,626


	Less than 12 Months				12 Months or Greater				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
At December 31, 2014
Equity securities	$	1,380	$	197	$	146	$	98	$	1,526	$	295

At December 31, 2013
Equity securities	$	167	$	3	$	289	$	62	$	456	$	65

Accounts Receivable

(f)

Accounts Receivable

Inventories

(g)

Inventories

At December 31, inventory consists of the following (in thousands):


	2014		2013
Raw materials and supplies	$	6,903	$	3,197
Finished goods		1,347		428

	$	8,250	$	3,625

Property and Equipment

(h)

Property and Equipment


Description	Life in Years
Transportation equipment		5 - 15
Other operating assets		3 - 15
Information technology equipment		2 - 5
Buildings and related assets		10 - 39

The amounts recorded for depreciation expense were $23.1 million, $17.6 million, and $15.2 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Intangible Assets

(i)

Intangible Assets

Our identifiable intangible assets as of December 31, 2014 and 2013 are as follows (in thousands):


	2014			2013
Indefinite Lived Intangibles:
Trademarks	$	2,500		$	2,500

Definite Lived Intangibles:
Agent and customer relationships		65,060			64,052
Customer contracts		20,600			20,600
Less: accumulated amortization		(34,340	)		(24,345	)

Intangible assets, net	$	51,320		$	60,307

Total Identifiable Intangible Assets	$	53,820		$	62,807

Estimated amortization expense by year is as follows (in thousands):


2015	$	9,102
2016		7,423
2017		5,995
2018		2,519
2019		2,254
Thereafter		24,027

Total	$	51,320

The amounts recorded for amortization expense were $9.9 million, $2.1 million, and $3.0 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Goodwill

(j)

Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2014 and 2013 are as follows (in thousands):


Balance as of January 1, 2013	$	17,965
Westport Acquisition		56,624

Balance as of December 31, 2013		74,589
Bull’s Eye acquisitions		163
Westport adjustments		(268	)

Balance as of December 31, 2014	$	74,484

Long-Lived Assets

(k)

Long-Lived Assets

Contingent Consideration

(l)

Contingent Consideration

Fair Value of Financial Instruments

(m)

Fair Value of Financial Instruments

Deferred Compensation

(n)

Deferred Compensation

Closing Costs

(o)

Closing Costs

Revenue and Related Expenses

(p)

Revenue and Related Expenses

Insurance & Claims

(q)

Insurance & Claims

Our insurance expense varies primarily based upon the frequency and severity of our accident experience, insurance rates, coverage limits, and self-insured retention amounts.

Stock Based Compensation

(r)

Stock Based Compensation

Income Taxes

(s)

Income Taxes

Foreign Currency Translation

(t)

Foreign Currency Translation

Segment Information

(u)

Segment Information

Concentrations of Credit Risk

(v)

Concentrations of Credit Risk

Unaudited Pro Forma Earnings Per Share

(w)

Unaudited Pro Forma Earnings Per Share


	2012
Net income	$	47,688
Pro forma provision for income taxes due to LINC’s conversion to a “C” corporation		11,059

Pro forma net income	$	36,629

Pro forma earnings per common share:
Basic	$	1.22
Diluted	$	1.22
Weighted average number of common shares outstanding:
Basic		30,032
Diluted		30,036

Recent Accounting Pronouncements

(x)

Recent Accounting Pronouncements

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Schedule of Cost, Gross Unrealized Holding Gains Losses, and Fair Value of Available-for-Sale Securities

The cost, gross unrealized holding gains, gross unrealized holding losses, and fair value of available-for-sale securities by type were as follows (in thousands):


	Cost		Gross unrealized holding gains		Gross unrealized holding (losses)			Fair Value
At December 31, 2014
Equity Securities	$	9,779	$	4,825	$	(295	)	$	14,309

At December 31, 2013
Equity Securities	$	7,717	$	3,974	$	(65	)	$	11,626

Schedule of Gross Unrealized Holding Losses and Fair Value of Marketable Securities


	Less than 12 Months				12 Months or Greater				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
At December 31, 2014
Equity securities	$	1,380	$	197	$	146	$	98	$	1,526	$	295

At December 31, 2013
Equity securities	$	167	$	3	$	289	$	62	$	456	$	65

Schedule of Inventories

At December 31, inventory consists of the following (in thousands):


	2014		2013
Raw materials and supplies	$	6,903	$	3,197
Finished goods		1,347		428

	$	8,250	$	3,625

Estimated Useful Lives of Assets


Description	Life in Years
Transportation equipment		5 - 15
Other operating assets		3 - 15
Information technology equipment		2 - 5
Buildings and related assets		10 - 39

Schedule of Identifiable Intangible Assets

Our identifiable intangible assets as of December 31, 2014 and 2013 are as follows (in thousands):


	2014			2013
Indefinite Lived Intangibles:
Trademarks	$	2,500		$	2,500

Definite Lived Intangibles:
Agent and customer relationships		65,060			64,052
Customer contracts		20,600			20,600
Less: accumulated amortization		(34,340	)		(24,345	)

Intangible assets, net	$	51,320		$	60,307

Total Identifiable Intangible Assets	$	53,820		$	62,807

Estimated Amortization Expense by Year

Estimated amortization expense by year is as follows (in thousands):


2015	$	9,102
2016		7,423
2017		5,995
2018		2,519
2019		2,254
Thereafter		24,027

Total	$	51,320

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2014 and 2013 are as follows (in thousands):


Balance as of January 1, 2013	$	17,965
Westport Acquisition		56,624

Balance as of December 31, 2013		74,589
Bull’s Eye acquisitions		163
Westport adjustments		(268	)

Balance as of December 31, 2014	$	74,484

Schedule of Earnings Per Share, Basic and Diluted


	2012
Net income	$	47,688
Pro forma provision for income taxes due to LINC’s conversion to a “C” corporation		11,059

Pro forma net income	$	36,629

Pro forma earnings per common share:
Basic	$	1.22
Diluted	$	1.22
Weighted average number of common shares outstanding:
Basic		30,032
Diluted		30,036

Business Combinations (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Pro Forma Consolidated Results of Operations Regarding Acquisition


	Pro Forma Twelve Months Ended December 31, 2013		Pro Forma Twelve Months Ended December 31, 2012
Operating revenues	$	1,121,459	$	1,095,393
Operating income	$	93,972	$	66,848
Net Income	$	54,791	$	44,143
Earnings per common share:
Basic	$	1.82	$	1.47
Diluted	$	1.82	$	1.47

Bull's-Eye Express, Inc. [Member]

Schedule of Allocation of Purchase Price


Intangible assets	$	1,007
Property and equipment		400
Goodwill (tax deductible)		163

	$	1,570

Westport USA Holding, LLC [Member]

Schedule of Allocation of Purchase Price

The final allocation of the purchase price is as follows (in thousands):


Current assets	$	24,492
Property and equipment		17,081
Goodwill		56,356
Intangible assets		57,800
Other long-term assets		474
Current liabilities		(2,932	)
Capital lease obligations		(5,164	)
Deferred tax liabilities, net		(25,083	)

	$	123,024

TFX Incorporated [Member]

Schedule of Allocation of Purchase Price


Intangible assets	$	657
Property and equipment		200
Goodwill (tax deductible)		243

	$	1,100

Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2014

Text Block [Abstract]

Summary of Activity in Allowance for Doubtful Accounts

Following is a summary of the activity in the allowance for doubtful accounts for the years ended December 31 (in thousands):


	2014			2013			2012
Balance at beginning of year	$	2,688		$	2,515		$	3,874
Provision for doubtful accounts		3,504			1,515			1,190
Acquisition of businesses		—			163			—
Uncollectible accounts written off		(985	)		(1,505	)		(2,549	)

Balance at end of year	$	5,207		$	2,688		$	2,515

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment at December 31 consists of the following (in thousands):


	2014			2013
Transportation equipment	$	186,344		$	151,395
Land, buildings and related assets		67,472			68,653
Other operating assets		54,433			43,624
Information technology equipment		15,261			14,427
Construction in process		4,169			2,163

		327,679			280,262
Less accumulated depreciation		(149,610	)		(137,606	)

Total	$	178,069		$	142,656

Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Details of Debt

Debt is comprised of the following (in thousands):


	Interest Rates at December 31, 2014	December 31,
	Interest Rates at December 31, 2014	2014		2013
Outstanding Debt:
Syndicated credit facility
$120 million revolving credit facility	LIBOR + 1.85%	$	59,500	$	60,000
Swing Line sub-facility	Prime + 0.85%		370		—
$60 million equipment financing facility	LIBOR + 2.35%		55,428		57,500
$50 million term loan	LIBOR + 3.00%		50,000		50,000
$70 million term loan B	LIBOR + 3.00%		70,000		70,000
UBS secured borrowing facility	LIBOR + 1.10%		—		—

			235,298		237,500
Less current portion			9,593		5,482

Total long-term debt		$	225,705	$	232,018

Summary of Maturities of Principal Repayment Obligations

The following table reflects the maturities of our principal repayment obligations as of December 31, 2014 (in thousands):


Years Ending December 31	Revolving Credit Facility		Swing Line Sub-Facility		Equipment Financing Facility		Term Loan		Term Loan B		Total
2015	$	—	$	—	$	8,571	$	1,022	$	—	$	9,593
2016		—		—		8,571		—		—		8,571
2017		59,500		370		38,286		48,978		70,000		217,134

Total	$	59,500	$	370	$	55,428	$	50,000	$	70,000	$	235,298

Fair Value Measurement and Disclosures (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Financial Assets Measured at Fair Value on Recurring Basis


	December 31, 2014
	Level 1		Level 2		Level 3		Fair Value Measurement
Assets
Cash equivalents	$	21	$	—	$	—	$	21
Marketable securities		14,309		—		—		14,309

Total Assets	$	14,330	$	—	$	—	$	14,330


	December 31, 2013
	Level 1		Level 2		Level 3		Fair Value Measurement
Assets
Cash equivalents	$	117	$	—	$	—	$	117
Marketable securities		11,626		—		—		11,626

Total Assets	$	11,743	$	—	$	—	$	11,743

Transactions with Affiliates (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Amounts Charged to UTSI

Following is a schedule of cost incurred and included in operating expenses for services provided by affiliates for the years ended December 31 (in thousands):


	2014		2013		2012
Administrative support services	$	2,459	$	2,367	$	2,535
Truck fueling and maintenance		1,320		1,774		3,850
Real estate rent and related costs		10,472		11,352		10,787
Insurance and employee benefit plans		36,073		32,710		33,657
Contracted transportation services		930		311		285

Total	$	51,254	$	48,514	$	51,114

Schedule of Services Provided to Affiliates

Following is a schedule of services provided to CenTra and affiliates for the years ended December 31 (in thousands):


	2014		2013		2012
Transportation and intermodal services	$	308	$	9,800	$	2,644
Truck fueling and maintenance		87		184		227
Administrative and customer support services		71		113		111

Total	$	466	$	10,097	$	2,982

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Summary of Income Related to U.S. and Non-U.S. Operations

A summary of income related to U.S. and non-U.S. operations are as follows (in thousands):


	Year Ended December 31,
	2014		2013		2012
Operations
U.S. Domestic	$	70,079	$	74,697	$	63,427
Foreign		3,020		6,219		4,525

Total pre-tax income	$	73,099	$	80,916	$	67,952

Provision for Income Taxes Attributable to Income from Continuing Operations

The provision for income taxes attributable to income from continuing operations for the years ended December 31 consists of the following (in thousands):


	2014		2013		2012
Current:
U.S. Federal	$	20,822	$	22,797	$	12,554
State		4,838		3,609		1,740
Foreign		590		1,442		1,586

		26,250		27,848		15,880
Deferred:
U.S. Federal		489		1,922		4,155
State		891		524		354
Foreign		99		50		(125	)

		1,479		2,496		4,384

Total	$	27,729	$	30,344	$	20,264

Deferred Income Tax Assets and Liabilities

Deferred income tax assets and liabilities at December 31 consist of the following (in thousands):


	2014						2013
	Current			Long-term			Current			Long-term
Domestic deferred tax assets:
Allowance for doubtful accounts	$	1,391		$	—		$	578		$	—
Other assets		—			3,083			—			1,018
Accrued expenses		5,285			—			5,826			—

Total domestic deferred tax assets		6,676			3,083			6,404			1,018

Domestic deferred tax liabilities:
Prepaid expenses		(1,290	)		—			(1,528	)		—
Marketable securities		—			(1,687	)		—			(1,480	)
Intangible assets		—			(18,404	)		—			(21,248	)
Property and equipment		—			(29,061	)		—			(22,261	)

Total domestic deferred tax liabilities		(1,290	)		(49,152	)		(1,528	)		(44,989	)

Foreign deferred tax asset
Other assets		—			590			—			624
Valuation allowance—foreign		—			(404	)		—			(401	)

Total foreign deferred tax asset		—			186			—			223

Net deferred tax asset (liability)	$	5,386		$	(45,883	)	$	4,876		$	(43,748	)

Income Tax Expense Attributable to Income from Continuing Operations Differs from Statutory Rates

Income tax expense attributable to income from continuing operations differs from the statutory rates as follows:


	2014			2013			2012
Federal statutory rate		35	%		35	%		35	%
S-Corp earnings taxed at shareholder level		0	%		0	%		-14	%
Non-deductible (benefit) expense		-2	%		-1	%		3	%
LINC tax status change		0	%		0	%		4	%
State, net of federal benefit		5	%		3	%		2	%
Foreign		0	%		0	%		0	%

Effective tax rate		38	%		37	%		30	%

Changes in Company's Gross Unrecognized Tax Benefits

The changes in our gross unrecognized tax benefits during the years ended December 31 are as follows (in thousands):


	2014			2013			2012
Unrecognized tax benefit—beginning of year	$	652		$	741		$	687
Increases related to prior year tax positions		4			137			12
Increases related to current year tax positions		13			15			42
Decreases related to prior year tax positions		(255	)		(241	)		—
Settlements with taxing authorities		—			—			—
Lapse of statutes of limitations		—			—			—

Unrecognized tax benefit—end of year	$	414		$	652		$	741

Leases (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Schedule of Future Minimum Rental Payments Under Non-Cancelable Capital Leases and Operating Leases

Future minimum rental payments pursuant to leases that have an initial or remaining non-cancelable lease term in excess of one year as of December 31, 2014 are as follows (in thousands):


			Operating Leases
Years Ending December 31	Capital Leases		With Affiliates		With Third Parties		Total
2015	$	1,191	$	5,956	$	10,478	$	17,625
2016		988		4,136		4,857		9,981
2017		731		2,904		3,699		7,334
2018		380		810		1,206		2,396
2019		—		338		—		338
Thereafter		—		—		—		—

Total required payments		3,290	$	14,144	$	20,240	$	37,674

Less amounts representing interest (1.4% to 4.7%)		259

Present value of minimum lease payments		3,031
Less current maturities		1,051

	$	1,980

Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Components of Comprehensive Income

Comprehensive income includes the following for the years ended December 31 (in thousands):


	2014			2013			2012
Unrealized holding gains on available-for-sale investments arising during the period:
Gross amount	$	620		$	2,160		$	1,383
Income tax (expense) benefit		(208	)		(614	)		(817	)

Net of tax amount	$	412		$	1,546		$	566

Realized (gains) on available-for-sale investments reclassified into income:
Gross amount	$	—		$	(107	)	$	(2,189	)
Income tax expense		—			39			1,013

Net of tax amount	$	—		$	(68	)	$	(1,176	)

Foreign currency translation adjustments	$	(1,631	)	$	(227	)	$	312

Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Status of Nonvested Shares

A summary of the status of our non-vested shares as of December 31, 2014, and changes during the year ended December 31, 2014, is presented below:


	Shares			Weighted Average Grant Date Fair Value
Nonvested at January 1, 2014		106,885		$	16.42
Granted		—		$	—
Vested		(90,439	)	$	16.42
Forfeited		—		$	—

Balance at December 31, 2014		16,446		$	16.42

Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Financial Data

	2014
	1^st quarter		2^nd quarter		3^rd quarter		4^th quarter
	(in thousands, except per share information)
Operating revenue	$	279,364	$	307,549	$	302,128	$	302,480
Operating income		14,629		24,413		23,000		18,793
Income before income taxes		13,143		22,075		21,052		16,829
Provision for income taxes		5,019		8,442		7,958		6,310

Net income	$	8,124	$	13,633	$	13,094	$	10,519

Earnings per common share:
Basic	$	0.27	$	0.45	$	0.44	$	0.35
Diluted	$	0.27	$	0.45	$	0.44	$	0.35
Weighted average number of common shares outstanding:
Basic		30,112		30,054		29,947		29,946
Diluted		30,158		30,092		29,982		29,952


	2013
	1^st quarter		2^nd quarter		3^rd quarter		4^th quarter
	(in thousands, except per share information)
Operating revenue	$	248,109	$	264,172	$	261,663	$	259,548
Operating income		19,251		23,629		22,480		19,133
Income before income taxes		18,283		22,828		21,491		18,314
Provision for income taxes		6,909		8,674		7,749		7,012

Net income	$	11,374	$	14,154	$	13,742	$	11,302

Earnings per common share:
Basic	$	0.38	$	0.47	$	0.46	$	0.38
Diluted	$	0.38	$	0.47	$	0.46	$	0.38
Weighted average number of common shares outstanding:
Basic		30,054		30,054		30,065		30,083
Diluted		30,196		30,196		30,118		30,127

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Summary of Company's Reportable Segment Information

The following tables summarize information about our reportable segments as of and for the fiscal years ended December 31, 2014, 2013 and 2012 (in thousands):


2014	Transportation		Logistics		Other			Total
Operating revenues	$	778,603	$	412,507	$	411		$	1,191,521
Eliminated inter-segment revenues		5,160		7,473		—			12,633
Depreciation and amortization		11,256		21,507		290			33,053
Income from operations		34,931		50,892		(4,988	)		80,835
Capital expenditures		16,444		42,413		927			59,784
Total assets		246,190		247,155		35,669			529,014


2013	Transportation		Logistics		Other			Total
Operating revenues	$	705,557	$	327,498	$	437		$	1,033,492
Eliminated inter-segment revenues		679		179		—			858
Depreciation and amortization		11,557		7,861		268			19,686
Income from operations		28,537		58,724		(2,768	)		84,493
Capital expenditures		9,084		6,426		1,525			17,035
Total assets		221,428		229,947		38,761			490,136

2012	Transportation		Logistics		Other			Total
Operating revenues	$	747,313	$	289,268	$	425		$	1,037,006
Eliminated inter-segment revenues		514		83		—			597
Depreciation and amortization		12,066		5,957		214			18,237
Income from operations		30,623		49,497		(10,963	)		69,157
Capital expenditures		15,463		12,927		1,176			29,566
Total assets		226,896		77,563		22,910			327,369

Revenues for Selected Services by Operating Segments

Revenues for selected services as provided to the chief operating decision maker are as follows (in thousands):


	Year Ended December 31,
	2014		2013		2012
Transportation services	$	769,308	$	706,998	$	741,650
Value-added services		284,496		195,086		174,975
Intermodal services		137,717		131,408		120,381

Total	$	1,191,521	$	1,033,492	$	1,037,006

Revenues Attributed to Geographic Areas

Revenues are attributed to geographic areas


	Year Ended December 31,
	2014		2013		2012
United States	$	1,153,154	$	992,511	$	999,668
Mexico		24,860		23,440		20,266
Canada		9,786		14,029		13,407
Europe		2,419		2,278		2,057
Other		1,302		1,234		1,608

Total	$	1,191,521	$	1,033,492	$	1,037,006

Net Long-Lived Property and Equipment Assets by Geographic Areas

Net long-lived property and equipment assets are presented in the table below (in thousands):


	Year Ended December 31,
	2014		2013
United States	$	172,360	$	134,951
Mexico		5,671		7,640
Canada		38		65

Total	$	178,069	$	142,656

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References+ Details

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
	Dec. 20, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Line Items]
Checks issued in excess of funds on deposit		$ 13,400,000	$ 0
Change in checks issued in excess of funds on deposit		13,400,000	(13,400,000)	3,400,000
Proceeds from sale of marketable securities			520,000	7,500,000
Purchases of marketable securities		(2,063,000)	(24,000)	(19,000)
Cost on sale of marketable securities			400,000	5,300,000
Realized gain on sale of marketable securities			100,000	2,200,000
Equity securities at book value		1,800,000
Temporary impairment loss of equity securities		300,000
Number of investments in publicly traded companies		16
Depreciation expense		23,100,000	17,600,000	15,200,000
Weighted average amortization period		12 years
Amounts recorded for amortization expense		9,900,000	2,100,000	3,000,000
Goodwill		74,484,000	74,589,000	17,965,000
Deferred compensation bonus annual installments		5 years
Fuel surcharges		119,700,000	118,600,000	115,200,000
Recognized income tax positions		50.00%
Number of reportable segments		2
Assumed blended Federal, State and local income tax rate				38.50%
Customer contracts [Member]
Accounting Policies [Line Items]
Weighted average amortization period		2 years
Agent and customer relationships [Member]
Accounting Policies [Line Items]
Weighted average amortization period		15 years
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Accounting Policies [Line Items]
Percentage of revenues from major customers		28.40%	33.80%	30.70%
Transportation [Member]
Accounting Policies [Line Items]
Goodwill		18,200,000	18,000,000
Logistics [Member]
Accounting Policies [Line Items]
Goodwill		$ 56,300,000	$ 56,600,000
General Motors [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Accounting Policies [Line Items]
Percentage of revenues from major customers		9.70%
Top Ten Customers [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Accounting Policies [Line Items]
Percentage of revenues from major customers		36.10%
Minimum [Member]
Accounting Policies [Line Items]
Estimated useful lives		1 year
Maximum [Member]
Accounting Policies [Line Items]
Estimated useful lives		19 years
Restricted stock [Member]
Accounting Policies [Line Items]
Granted shares of restricted stock	178,137	0	0	178,137
Granted shares of restricted stock Per share		$ 0		$ 16.42

Summary of Significant Accounting Policies - Schedule of Cost, Gross Unrealized Holding Gains Losses, and Fair Value of Available-for-Sale Securities (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Equity Securities, Cost	$ 9,779	$ 7,717
Equity Securities, Gross unrealized holding gains	4,825	3,974
Equity Securities, Gross unrealized holding (losses)	(295)	(65)
Equity Securities, Fair Value	$ 14,309	$ 11,626

Summary of Significant Accounting Policies - Schedule of Gross Unrealized Holding Losses and Fair Value of Marketable Securities (Detail) (Equity securities [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity securities, Less than 12 Months Fair Value	$ 1,380	$ 167
Equity securities, Less than 12 Months Unrealized Losses	197	3
Equity securities, 12 Months or Greater Fair Value	146	289
Equity securities, 12 Months or Greater Unrealized Losses	98	62
Equity securities, Total, Fair Value	1,526	456
Equity securities, Total, Unrealized Losses	$ 295	$ 65

Summary of Significant Accounting Policies - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Abstract]
Raw materials and supplies	$ 6,903	$ 3,197
Finished goods	1,347	428
Inventory, Net	$ 8,250	$ 3,625

Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Detail)	12 Months Ended
	Dec. 31, 2014
Minimum [Member] \| Transportation equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Minimum [Member] \| Other operating assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] \| Information technology equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	2 years
Minimum [Member] \| Buildings and related assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	10 years
Maximum [Member] \| Transportation equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	15 years
Maximum [Member] \| Other operating assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	15 years
Maximum [Member] \| Information technology equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Maximum [Member] \| Buildings and related assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	39 years

Summary of Significant Accounting Policies - Schedule of Identifiable Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Less: accumulated amortization	$ (34,340)	$ (24,345)
Intangible assets, net	51,320	60,307
Total Identifiable Intangible Assets	53,820	62,807
Agent and customer relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite lived intangible assets gross	65,060	64,052
Customer contracts [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite lived intangible assets gross	20,600	20,600
Trademarks [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets excluding goodwill	$ 2,500	$ 2,500

Summary of Significant Accounting Policies - Estimated Amortization Expense by Year (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Abstract]
2015	$ 9,102
2016	7,423
2017	5,995
2018	2,519
2019	2,254
Thereafter	24,027
Intangible assets, net	$ 51,320	$ 60,307

Summary of Significant Accounting Policies - Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified				12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014 Westport USA Holding, LLC [Member]	Dec. 31, 2013 Westport USA Holding, LLC [Member]	Dec. 31, 2014 Bull's-Eye Express, Inc. [Member]
Goodwill [Line Items]
Beginning Balance	$ 74,484	$ 74,589	$ 17,965
Business Acquisitions					56,624	163
Business Adjustments				(268)
Ending Balance	$ 74,484	$ 74,589	$ 17,965

Summary of Significant Accounting Policies - Schedule of Earnings Per Share, Basic and Diluted (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net income	$ 10,519	$ 13,094	$ 13,633	$ 8,124	$ 11,302	$ 13,742	$ 14,154	$ 11,374	$ 45,370	$ 50,572	$ 47,688
Pro forma provision for income taxes due to LINC's conversion to a "C" corporation											11,059
Pro forma net income											$ 36,629
Pro forma earnings per common share:
Basic											$ 1.22
Diluted											$ 1.22
Weighted average number of common shares outstanding:
Basic											30,032
Diluted											30,036

Business Combinations - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended			12 Months Ended						1 Months Ended	12 Months Ended					12 Months Ended
	Oct. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Oct. 01, 2012	Dec. 31, 2014 Minimum [Member]	Dec. 31, 2014 Minimum [Member] Customer Contracts and Customer Relationships [Member]	Dec. 31, 2014 Maximum [Member]	Dec. 31, 2014 Maximum [Member] Customer Contracts and Customer Relationships [Member]	Dec. 31, 2012 LINC [Member]	Sep. 30, 2012 LINC [Member]	Sep. 27, 2014 Bull's-Eye Express, Inc. [Member]	Dec. 31, 2014 Bull's-Eye Express, Inc. [Member]	Dec. 31, 2014 Westport USA Holding, LLC [Member]	Dec. 31, 2013 Westport USA Holding, LLC [Member]	Dec. 31, 2014 TFX Incorporated [Member]	May 31, 2012 TFX Incorporated [Member]	Dec. 31, 2014 TFX Incorporated [Member] Customer relationships [Member]
Business Acquisition [Line Items]
Cost of acquisition											$ 1,600,000		$ 1,400,000	$ 123,000,000
Business acquisition cost of acquired entity available cash paid												1,300,000
Business acquisition debt forgiveness												300,000
Estimated useful life of intangible assets					1 year	5 months	19 years	19 years
Acquisition related costs			700,000						8,400,000
Assets acquired for acquisition															1,100,000	1,100,000
Amortization period of intangible assets acquired		12 years															7 years
Issuance of common stock for acquisition shares	14,527,332
Common stock converted into rights in consideration	0.7
Percentage of common stock owned by majority shareholders	100.00%			100.00%
Funds borrowed to repay outstanding indebtedness and dividends payable										$ 149,100,000

Business Combinations - Schedule of Allocation of Purchase Price (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014 Bull's-Eye Express, Inc. [Member]	Dec. 19, 2013 Westport USA Holding, LLC [Member]	Dec. 31, 2014 TFX Incorporated [Member]	May 31, 2012 TFX Incorporated [Member]
Business Acquisition [Line Items]
Current assets		$ 24,492
Property and equipment	400	17,081	200
Goodwill	163	56,356	243
Intangible assets	1,007	57,800	657
Other long-term assets		474
Total assets acquired			1,100	1,100
Current liabilities		(2,932)
Capital lease obligations		(5,164)
Deferred tax liabilities, net		(25,083)
Total assets and liabilities acquired	$ 1,570	$ 123,024

Business Combinations - Schedule of Pro Forma Consolidated Results of Operations Regarding Acquisition (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Business Combinations [Abstract]
Operating revenues	$ 1,121,459	$ 1,095,393
Operating income	93,972	66,848
Net Income	$ 54,791	$ 44,143
Basic	$ 1.82	$ 1.47
Diluted	$ 1.82	$ 1.47

Accounts Receivable - Summary of Activity in Allowance for Doubtful Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]
Balance at beginning of year	$ 2,688	$ 2,515	$ 3,874
Provision for doubtful accounts	3,504	1,515	1,190
Acquisition of businesses		163
Uncollectible accounts written off	(985)	(1,505)	(2,549)
Balance at end of year	$ 5,207	$ 2,688	$ 2,515

Property and Equipment - Schedule of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment	$ 327,679	$ 280,262
Less accumulated depreciation	(149,610)	(137,606)
Total	178,069	142,656
Transportation equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	186,344	151,395
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	67,472	68,653
Other operating assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	54,433	43,624
Information technology equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	15,261	14,427
Construction in process [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 4,169	$ 2,163

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Payroll related items	$ 8,827	$ 8,080
Driver escrow liabilities	4,519	6,099
Commissions, taxes and other	8,995	6,893
Total	$ 22,341	$ 21,072

Debt - Details of Debt (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Outstanding Debt:
Long-term debt	$ 235,298	$ 237,500
Less current portion	9,593	5,482
Total long-term debt	225,705	232,018
Syndicated credit facility, $120 million revolving credit facility [Member]
Outstanding Debt:
Credit facility, Interest Rates	LIBOR + 1.85%
Debt instrument, carrying amount	59,500	60,000
Syndicated Credit Facility. Swing Line sub-facility [Member]
Outstanding Debt:
Credit facility, Interest Rates	Prime + 0.85%
Debt instrument, carrying amount	370
Syndicated credit facility, $60 million equipment financing facility [Member]
Outstanding Debt:
Credit facility, Interest Rates	LIBOR + 2.35%
Debt instrument, carrying amount	55,428	57,500
Syndicated credit facility, $50 million term loan [Member]
Outstanding Debt:
Credit facility, Interest Rates	LIBOR + 3.00%
Debt instrument, carrying amount	50,000	50,000
Syndicated credit facility, $70 million term loan B [Member]
Outstanding Debt:
Credit facility, Interest Rates	LIBOR + 3.00%
Debt instrument, carrying amount	$ 70,000	$ 70,000
UBS secured borrowing facility [Member]
Outstanding Debt:
Credit facility, Interest Rates	LIBOR + 1.10%

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References+ Details

Debt - Details of Debt (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified			12 Months Ended				12 Months Ended			12 Months Ended		12 Months Ended
	Dec. 31, 2014 Syndicated credit facility, $120 million revolving credit facility [Member]	Dec. 19, 2013 Syndicated credit facility, $120 million revolving credit facility [Member]	Dec. 31, 2014 Syndicated credit facility, $120 million revolving credit facility [Member] LIBOR [Member]	Dec. 31, 2014 Syndicated Credit Facility. Swing Line sub-facility [Member] Prime [Member]	Dec. 31, 2014 Syndicated credit facility, $60 million equipment financing facility [Member]	Dec. 19, 2013 Syndicated credit facility, $60 million equipment financing facility [Member]	Dec. 31, 2014 Syndicated credit facility, $60 million equipment financing facility [Member] LIBOR [Member]	Dec. 31, 2014 Syndicated credit facility, $50 million term loan [Member]	Dec. 19, 2013 Syndicated credit facility, $50 million term loan [Member]	Dec. 31, 2014 Syndicated credit facility, $50 million term loan [Member] LIBOR [Member]	Dec. 31, 2014 Syndicated credit facility, $70 million term loan B [Member]	Dec. 31, 2014 Syndicated credit facility, $70 million term loan B [Member] LIBOR [Member]	Dec. 31, 2014 UBS secured borrowing facility [Member]	Dec. 31, 2014 UBS secured borrowing facility [Member] LIBOR [Member]
Debt Instrument [Line Items]
Interest rate above variable base rate			1.85%	0.85%			2.35%			3.00%		3.00%	1.10%	1.10%
Debt instrument, face amount	$ 120	$ 120			$ 60	$ 60		$ 50	$ 50		$ 70

Debt - Syndicated Credit Facility - Additional Information (Detail) (USD $)	12 Months Ended					0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 19, 2013 Westport USA Holding, LLC [Member]	Dec. 19, 2013 Syndicated credit facility [Member]	Dec. 19, 2013 Revolving Credit Facility [Member] Westport USA Holding, LLC [Member]	Dec. 19, 2013 Second Amendment [Member] Syndicated credit facility [Member]	Dec. 31, 2014 Syndicated credit facility, $70 million term loan B [Member]	Dec. 19, 2013 Syndicated credit facility, $70 million term loan B [Member]	Dec. 19, 2013 Syndicated credit facility, $70 million term loan B [Member] Westport USA Holding, LLC [Member]	Dec. 31, 2014 Syndicated credit facility, $120 million revolving credit facility [Member]	Dec. 19, 2013 Syndicated credit facility, $120 million revolving credit facility [Member]	Dec. 31, 2014 Syndicated credit facility, $60 million equipment financing facility [Member]	Dec. 19, 2013 Syndicated credit facility, $60 million equipment financing facility [Member]	Dec. 31, 2014 Syndicated credit facility, $50 million term loan [Member]	Dec. 19, 2013 Syndicated credit facility, $50 million term loan [Member]	Dec. 19, 2013 Term Loan B [Member]	Dec. 31, 2014 Letters of credit [Member]	Dec. 19, 2013 Letters of credit [Member] Syndicated credit facility [Member]
Credit Facilities [Line Items]
Debt instrument, face amount					$ 300,000,000			$ 70,000,000			$ 120,000,000	$ 120,000,000	$ 60,000,000	$ 60,000,000	$ 50,000,000	$ 50,000,000	$ 70,000,000
Increase in revolving credit facility							10,000,000
Credit facility additional borrowing capacity									70,000,000	70,000,000
Increase in revolving credit facility												20,000,000
Credit facility, borrowing capacity																		5,000,000	5,000,000
Proceeds from credit facility	134,228,000	48,218,000	94,871,000			25,000,000
Credit facility additional borrowings				$ 25,500,000

Debt - Revolving Credit Facility - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014 Option	Dec. 31, 2013
Credit Facilities [Line Items]
Letters of credit issued against revolving credit facility	$ 0
Comerica Bank Credit Facility [Member]
Credit Facilities [Line Items]
Credit facility, borrowing capacity	7,000,000
Key Bank Credit Facility [Member]
Credit Facilities [Line Items]
Credit facility, borrowing capacity	3,000,000
Letters of credit [Member]
Credit Facilities [Line Items]
Credit facility, borrowing capacity	5,000,000
Syndicated credit facility, $120 million revolving credit facility [Member]
Credit Facilities [Line Items]
Revolving credit facility maturity date	Aug. 28, 2015
Number of interest rate options	2
Federal funds effective rate plus	1.00%
Adjusting LIBOR rate plus	LIBOR + 1.85%
Interest rate above LIBOR	1.00%
Interest accrued percentage	2.02%
Debt instrument, carrying amount	59,500,000	60,000,000
Credit facility, secured by accounts receivable	122,400,000
Credit facility available for borrowings pursuant to the agreement	104,100,000
Premiums or penalties resulting from prepayment	0
Syndicated credit facility, $120 million revolving credit facility [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Facility fee	0.25%
Syndicated credit facility, $120 million revolving credit facility [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Facility fee	0.50%
Syndicated credit facility, $120 million revolving credit facility [Member] \| Eurodollar-based [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Interest at 30, 60 or 90-day LIBOR rates plus an applicable margin, which varies from 1.35% to 2.10% based on our ratio of total debt to earnings before interest, taxes, depreciation and amortization ("EBITDA"), as defined.
Syndicated credit facility, $120 million revolving credit facility [Member] \| Eurodollar-based [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	1.35%
Syndicated credit facility, $120 million revolving credit facility [Member] \| Eurodollar-based [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	2.10%
Syndicated credit facility, $120 million revolving credit facility [Member] \| Base rate [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Base rate advances bear interest at a base rate, as defined, plus an applicable margin, which also varies based on our ratio of total debt to EBITDA in a range from 0.35% to 1.10%.
Syndicated credit facility, $120 million revolving credit facility [Member] \| Base rate [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	0.35%
Syndicated credit facility, $120 million revolving credit facility [Member] \| Base rate [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	1.10%
Syndicated credit facility, $120 million revolving credit facility [Member] \| LIBOR [Member]
Credit Facilities [Line Items]
Margin rate	1.85%
Adjusting LIBOR rate plus	LIBOR + 1.00%
Swing Line Sub-Facility [Member]
Credit Facilities [Line Items]
Interest accrued percentage	4.10%
Credit facility, borrowing capacity	10,000,000
Credit facility, outstanding	$ 400,000

Debt - Equipment Credit Facility - Additional Information (Detail) (Syndicated credit facility, $60 million equipment financing facility [Member])	12 Months Ended
	Dec. 31, 2014 Installment Option
Credit Facilities [Line Items]
Credit facility, expiration date	Aug. 28, 2015
Frequency of installments	Quarterly
Number of installments	28
Number of interest rate options	2
Credit facility fees percentage	0.50%
Interest accrued percentage	2.52%
Eurodollar-based [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Eurodollar-based advances bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin, which varies from 1.60% to 2.60% based on our ratio of total debt to EBITDA.
Eurodollar-based [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	1.60%
Eurodollar-based [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	2.60%
Base rate [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Base rate advances bear interest at a base rate, as defined, plus an applicable margin, which also varies based on our ratio of total debt to EBITDA in a range from 0.60% to 1.60%.
Base rate [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	0.60%
Base rate [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	1.60%

Debt - Term Loan - Additional Information (Detail) (Syndicated credit facility, $50 million term loan [Member])	12 Months Ended
	Dec. 31, 2014
Credit Facilities [Line Items]
Credit facility, expiration date	Aug. 28, 2017
Interest accrued percentage	3.17%
Base rate [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Base rate advances bear interest at a defined base rate plus an applicable margin which varies from 1.50% to 2.25%, based on our ratio of total debt to EBITDA.
Base rate [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	1.50%
Base rate [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	2.25%
Eurodollar-based [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Which bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin which varies from 2.50% to 3.25%, based on our ratio of total debt to EBITDA.
Eurodollar-based [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	2.50%
Eurodollar-based [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	3.25%

Debt - Term Loan B - Additional Information (Detail) (Syndicated credit facility, $70 million term loan B [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Credit Facilities [Line Items]
Credit facility, expiration date	Aug. 28, 2017
Interest accrued percentage	3.17%
Repayments of borrowings under term loan facility	50% (which percentage shall be reduced to 0% subject to the Company attaining a certain leverage ratio) of our annual excess cash flow, as defined; 100% of net cash proceeds of certain asset sales; and 100% of certain insurance and condemnation proceeds.
Prepayment of term loan	$ 1.0
Maximum senior debt to EBITDA	2.5
Maximum total debt to EBITDA	3.0
Fixed charge coverage ratio	1.25
Eurodollar-based [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Which bear interest at 30, 60 or 90-day LIBOR rates plus an applicable margin which varies from 2.50% to 3.25%, based on our ratio of total debt to EBITDA.
Eurodollar-based [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	2.50%
Eurodollar-based [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	3.25%
Base rate [Member]
Credit Facilities [Line Items]
Line of credit facility, interest rate description	Base rate advances bear interest at a defined base rate plus an applicable margin which varies from 1.50% to 2.25%, based on our ratio of total debt to EBITDA.
Base rate [Member] \| Minimum [Member]
Credit Facilities [Line Items]
Margin rate	1.50%
Base rate [Member] \| Maximum [Member]
Credit Facilities [Line Items]
Margin rate	2.25%

Debt - UBS Secured Borrowing Facility - Additional Information (Detail) (UBS secured borrowing facility [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
UBS secured borrowing facility [Member]
Debt Instrument [Line Items]
Margin rate	1.10%
Effective rate, percentage	1.27%
Credit facility, borrowing capacity	$ 6,900,000	$ 5,400,000
Principal payments outstanding	$ 0

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References+ Details

Debt - Summary of Maturities of Principal Repayment Obligations (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Debt Maturities [Line Items]
2015	$ 9,593
2016	8,571
2017	217,134
Total	235,298
Revolving Credit Facility [Member]
Debt Maturities [Line Items]
2017	59,500
Total	59,500
Swing Line Sub-Facility [Member]
Debt Maturities [Line Items]
2017	370
Total	370
Equipment Financing Facility [Member]
Debt Maturities [Line Items]
2015	8,571
2016	8,571
2017	38,286
Total	55,428
Term Loan [Member]
Debt Maturities [Line Items]
2015	1,022
2017	48,978
Total	50,000
Term Loan B [Member]
Debt Maturities [Line Items]
2017	70,000
Total	$ 70,000

Fair Value Measurement and Disclosures - Financial Assets Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 14,309	$ 11,626
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	21	117
Marketable securities	14,309	11,626
Total Assets	14,330	11,743
Fair Value, Measurements, Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	21	117
Marketable securities	14,309	11,626
Total Assets	$ 14,330	$ 11,743

Transactions with Affiliates - Schedule of Amounts Charged to UTSI (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	$ 51,254	$ 48,514	$ 51,114
Administrative support services [Member]
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	2,459	2,367	2,535
Truck fueling and maintenance [Member]
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	1,320	1,774	3,850
Real estate rent and related costs [Member]
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	10,472	11,352	10,787
Insurance and employee benefit plans [Member]
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	36,073	32,710	33,657
Contracted transportation services [Member]
Related Party Transaction [Line Items]
Cost incurred for services provided by CenTra and affiliates	$ 930	$ 311	$ 285

Transactions with Affiliates - Additional Information (Detail) (USD $)	12 Months Ended					0 Months Ended
	Dec. 31, 2014 Tractor Trailers Facility	Dec. 31, 2013 Tractor	Dec. 31, 2012	Oct. 31, 2012	Oct. 01, 2012	Mar. 12, 2015 Subsequent Event [Member] Service Level Agreement with Data System Services, LLC, [Member]	Dec. 31, 2014 Freight [Member]
Related Party Transaction [Line Items]
Occupancy of facilities either on monthly or contractual basis	43
Due to affiliates	$ 2,896,000	$ 3,618,000
Insurance, claims and other receivables	10,700,000	15,800,000
Costs related to an underwritten public offering	500,000	500,000
Number of used tractors purchased	10	39
Cost of tractors purchased from an affiliate	800,000	1,600,000
Number of used trailer purchased	1
Amounts paid for legal services	92,000	7,000	144,000
Due from affiliates	1,562,000	2,283,000
Number of used trailers sold	41
Gain Loss on sale of Trailers	82,000
Assets Acquiring Charges							100,000
Percentage of common stock owned by principal shareholders				100.00%	100.00%
Initial cost of service level agreement						200,000
Annual cost of service level agreement						$ 200,000

Transactions with Affiliates - Schedule of Services Provided to Affiliates (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Services provided to affiliates	$ 466	$ 10,097	$ 2,982
Transportation and intermodal services [Member]
Related Party Transaction [Line Items]
Services provided to affiliates	308	9,800	2,644
Truck fueling and maintenance [Member]
Related Party Transaction [Line Items]
Services provided to affiliates	87	184	227
Administrative and customer support services [Member]
Related Party Transaction [Line Items]
Services provided to affiliates	$ 71	$ 113	$ 111

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References+ Details

Income Taxes - Provision for Income Taxes Attributable to Income from Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
U.S. Federal									$ 20,822	$ 22,797	$ 12,554
State									4,838	3,609	1,740
Foreign									590	1,442	1,586
Current income taxes provision, Total									26,250	27,848	15,880
Deferred:
U.S. Federal									489	1,922	4,155
State									891	524	354
Foreign									99	50	(125)
Deferred income taxes provision, Total									1,479	2,496	4,384
Total	$ 6,310	$ 7,958	$ 8,442	$ 5,019	$ 7,012	$ 7,749	$ 8,674	$ 6,909	$ 27,729	$ 30,344	$ 20,264

Income Taxes - Deferred Income Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current [Member]
Domestic deferred tax assets:
Deferred tax assets	$ 6,676	$ 6,404
Domestic deferred tax liabilities:
Deferred tax liabilities	(1,290)	(1,528)
Foreign deferred tax asset
Net deferred tax asset (liability)	5,386	4,876
Current [Member] \| Accrued expenses [Member]
Domestic deferred tax assets:
Deferred tax assets	5,285	5,826
Current [Member] \| Prepaid expenses [Member]
Domestic deferred tax liabilities:
Deferred tax liabilities	(1,290)	(1,528)
Current [Member] \| Allowance for doubtful accounts [Member]
Domestic deferred tax assets:
Deferred tax assets	1,391	578
Long-term [Member]
Domestic deferred tax assets:
Deferred tax assets	3,083	1,018
Domestic deferred tax liabilities:
Deferred tax liabilities	(49,152)	(44,989)
Foreign deferred tax asset
Valuation allowance-foreign	(404)	(401)
Deferred tax assets	186	223
Net deferred tax asset (liability)	(45,883)	(43,748)
Long-term [Member] \| Other assets [Member]
Domestic deferred tax assets:
Deferred tax assets	3,083	1,018
Foreign deferred tax asset
Deferred tax assets	590	624
Long-term [Member] \| Property and equipment [Member]
Domestic deferred tax liabilities:
Deferred tax liabilities	(29,061)	(22,261)
Long-term [Member] \| Marketable securities [Member]
Domestic deferred tax liabilities:
Deferred tax liabilities	(1,687)	(1,480)
Long-term [Member] \| Intangible assets [Member]
Domestic deferred tax liabilities:
Deferred tax liabilities	$ (18,404)	$ (21,248)

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Undistributed earnings of foreign subsidiaries	$ 9,800,000
Recognition of additional income tax expense	2,500,000
Unrecognized tax benefit in certain tax positions	414,000	652,000	741,000	687,000
Accrued interest	100,000
Accrued penalties	$ 100,000

- Definition

Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

+ References+ Details

Income Taxes - Income Tax Expense Attributable to Income from Continuing Operations Differs from Statutory Rates (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
S-Corp earnings taxed at shareholder level	0.00%	0.00%	(14.00%)
Non-deductible (benefit) expense	(2.00%)	(1.00%)	3.00%
LINC tax status change	0.00%	0.00%	4.00%
State, net of federal benefit	5.00%	3.00%	2.00%
Foreign	0.00%	0.00%	0.00%
Effective tax rate	38.00%	37.00%	30.00%

Income Taxes - Changes in Company's Gross Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Unrecognized tax benefit - beginning of year	$ 652	$ 741	$ 687
Increases related to prior year tax positions	4	137	12
Increases related to current year tax positions	13	15	42
Decreases related to prior year tax positions	(255)	(241)
Settlements with taxing authorities	0	0	0
Lapse of statutes of limitations	0	0	0
Unrecognized tax benefit - end of year	$ 414	$ 652	$ 741

Leases - Schedule of Future Minimum Rental Payments Under Non-Cancelable Capital Leases and Operating Leases (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Operating Leases Future Minimum Payments Due [Line Items]
2015	$ 1,191
2016	988
2017	731
2018	380
2019	0
Thereafter	0
Total required payments	3,290
Less amounts representing interest (1.4% to 4.7%)	259
Present value of minimum lease payments	3,031
Present value of minimum lease payments	3,031
Less current maturities	1,051	1,592
Capital leases future minimum rental payment, Total	1,980	3,051
2015	17,625
2016	9,981
2017	7,334
2018	2,396
2019	338
Thereafter	0
Total required payments	37,674
Operating Leases with Affiliates [Member]
Operating Leases Future Minimum Payments Due [Line Items]
2015	5,956
2016	4,136
2017	2,904
2018	810
2019	338
Thereafter	0
Total required payments	14,144
Operating Leases With Third Parties [Member]
Operating Leases Future Minimum Payments Due [Line Items]
2015	10,478
2016	4,857
2017	3,699
2018	1,206
Thereafter	0
Total required payments	$ 20,240

Leases - Additional Information (Detail) (USD $)	12 Months Ended
Leases - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Lease Disclosure [Line Items]
Assets under capital leases			$ 0
Amortization expense capital leased assets	800,000	100,000
Rental expense for facilities, vehicles and other equipment leased from third parties	21,900,000	14,400,000	10,700,000
Property, Plant and Equipment [Member]
Lease Disclosure [Line Items]
Assets under capital leases	6,900,000	6,900,000
Amortization expense capital leased assets	$ 900,000	$ 100,000

Comprehensive Income - Components of Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Unrealized holding gains on available-for-sale investments, Gross amount	$ 620	$ 2,160	$ 1,383
Unrealized holding gains on available-for-sale investments, Income tax (expense) benefit	(208)	(614)	(817)
Unrealized holding gains on available-for-sale investments, Net of tax amount	412	1,546	566
Realized (gains) on available-for-sale investments reclassified into income, Gross amount		(107)	(2,189)
Realized (gains) on available-for-sale investments reclassified into income, Income tax expense		39	1,013
Realized (gains) on available-for-sale investments reclassified into income, Net of tax amount		(68)	(1,176)
Foreign currency translation adjustments	$ (1,631)	$ (227)	$ 312

Retirement Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2008
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension plan contribution				$ 600
Expense of retirement plans	400,000	400,000	400,000
Minimum eligibility service for defined contribution plan	1 year
Eligibility age for defined contribution plan	21 years
Employer contributions to defined contribution plan	0	0	0
Minimum [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Matching contributions offered to employee	0
Maximum [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Matching contributions offered to employee	2,080
Canadian [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of employees covered	9
Required contributions into Canada Wide Industrial Pension Plan	$ 30,000	$ 38,000

Stock Based Compensation - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Dec. 20, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants vested	20.00%
Additional restricted stock grants vested per year				20.00%
Total unrecognized compensation cost		$ 0.3
Weighted-average period of cost expected to be recognized		2 years
Total fair value of shares vested		$ 1.5
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of restricted stock granted	178,137	0	0	178,137

Stock Based Compensation - Summary of Status of Nonvested Shares (Detail) (Restricted stock [Member], USD $)	0 Months Ended	12 Months Ended
	Dec. 20, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Nonvested, Beginning Balance		106,885
Shares, Granted	178,137	0	0	178,137
Shares, Vested		(90,439)
Shares, Forfeited		0
Shares, Ending Balance		16,446	106,885
Weighted Average Grant Date Fair Value, Beginning Balance		$ 16.42
Weighted Average Grant Date Fair Value, Granted		$ 0		$ 16.42
Weighted Average Grant Date Fair Value, Vested		$ 16.42
Weighted Average Grant Date Fair Value, Forfeited		$ 0
Weighted Average Grant Date Fair Value, Ending Balance		$ 16.42	$ 16.42

Commitments and Contingencies - Additional Information (Detail) (Workforce Subject to Collective Bargaining Arrangements [Member], Unionized Employees Concentration Risk [Member])	12 Months Ended
	Dec. 31, 2014
Workforce Subject to Collective Bargaining Arrangements [Member] \| Unionized Employees Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of employees collective bargaining agreements	36.00%
Percentage of employees agreements that expire in 2015	20.00%

Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Data (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Operating revenue	$ 302,480	$ 302,128	$ 307,549	$ 279,364	$ 259,548	$ 261,663	$ 264,172	$ 248,109	$ 1,191,521	$ 1,033,492	$ 1,037,006
Operating income	18,793	23,000	24,413	14,629	19,133	22,480	23,629	19,251	80,835	84,493	69,157
Income before income taxes	16,829	21,052	22,075	13,143	18,314	21,491	22,828	18,283	73,099	80,916	67,952
Provision for income taxes	6,310	7,958	8,442	5,019	7,012	7,749	8,674	6,909	27,729	30,344	20,264
Net income	$ 10,519	$ 13,094	$ 13,633	$ 8,124	$ 11,302	$ 13,742	$ 14,154	$ 11,374	$ 45,370	$ 50,572	$ 47,688
Earnings per common share:
Basic	$ 0.35	$ 0.44	$ 0.45	$ 0.27	$ 0.38	$ 0.46	$ 0.47	$ 0.38	$ 1.51	$ 1.68	$ 1.59
Diluted	$ 0.35	$ 0.44	$ 0.45	$ 0.27	$ 0.38	$ 0.46	$ 0.47	$ 0.38	$ 1.51	$ 1.68	$ 1.59
Weighted average number of common shares outstanding:
Basic	29,946	29,947	30,054	30,112	30,083	30,065	30,054	30,054	30,013	30,064	30,032
Diluted	29,952	29,982	30,092	30,158	30,127	30,118	30,196	30,196	30,044	30,160	30,036

Segment Reporting - Summary of Company's Reportable Segment Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 302,480	$ 302,128	$ 307,549	$ 279,364	$ 259,548	$ 261,663	$ 264,172	$ 248,109	$ 1,191,521	$ 1,033,492	$ 1,037,006
Depreciation and amortization									33,053	19,686	18,237
Income from operations	18,793	23,000	24,413	14,629	19,133	22,480	23,629	19,251	80,835	84,493	69,157
Capital expenditures									59,784	17,035	29,566
Total assets	529,014				490,136				529,014	490,136	327,369
Transportation [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization									11,256	11,557	12,066
Income from operations									34,931	28,537	30,623
Capital expenditures									16,444	9,084	15,463
Total assets	246,190				221,428				246,190	221,428	226,896
Logistics [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization									21,507	7,861	5,957
Income from operations									50,892	58,724	49,497
Capital expenditures									42,413	6,426	12,927
Total assets	247,155				229,947				247,155	229,947	77,563
Other [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization									290	268	214
Income from operations									(4,988)	(2,768)	(10,963)
Capital expenditures									927	1,525	1,176
Total assets	35,669				38,761				35,669	38,761	22,910
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									1,191,521	1,033,492	1,037,006
Operating Segments [Member] \| Transportation [Member]
Segment Reporting Information [Line Items]
Revenues									778,603	705,557	747,313
Operating Segments [Member] \| Logistics [Member]
Segment Reporting Information [Line Items]
Revenues									412,507	327,498	289,268
Operating Segments [Member] \| Other [Member]
Segment Reporting Information [Line Items]
Revenues									411	437	425
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues									12,633	858	597
Intersegment Eliminations [Member] \| Transportation [Member]
Segment Reporting Information [Line Items]
Revenues									5,160	679	514
Intersegment Eliminations [Member] \| Logistics [Member]
Segment Reporting Information [Line Items]
Revenues									$ 7,473	$ 179	$ 83

Segment Reporting - Revenues for Selected Services by Operating Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting [Abstract]
Transportation services									$ 769,308	$ 706,998	$ 741,650
Value-added services									284,496	195,086	174,975
Intermodal services									137,717	131,408	120,381
Total operating revenues	$ 302,480	$ 302,128	$ 307,549	$ 279,364	$ 259,548	$ 261,663	$ 264,172	$ 248,109	$ 1,191,521	$ 1,033,492	$ 1,037,006

Segment Reporting - Revenues Attributed to Geographic Areas (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total operating revenues	$ 302,480	$ 302,128	$ 307,549	$ 279,364	$ 259,548	$ 261,663	$ 264,172	$ 248,109	$ 1,191,521	$ 1,033,492	$ 1,037,006
United States [Member]
Segment Reporting Information [Line Items]
Total operating revenues									1,153,154	992,511	999,668
Mexico [Member]
Segment Reporting Information [Line Items]
Total operating revenues									24,860	23,440	20,266
Canada [Member]
Segment Reporting Information [Line Items]
Total operating revenues									9,786	14,029	13,407
Europe [Member]
Segment Reporting Information [Line Items]
Total operating revenues									2,419	2,278	2,057
Other [Member]
Segment Reporting Information [Line Items]
Total operating revenues									$ 1,302	$ 1,234	$ 1,608

Segment Reporting - Net Long-Lived Property and Equipment Assets by Geographic Areas (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Property and equipment, total	$ 178,069	$ 142,656
United States [Member]
Segment Reporting Information [Line Items]
Property and equipment, total	172,360	134,951
Mexico [Member]
Segment Reporting Information [Line Items]
Property and equipment, total	5,671	7,640
Canada [Member]
Segment Reporting Information [Line Items]
Property and equipment, total	$ 38	$ 65

Subsequent Events - Additional Information (Detail) (USD $)	12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 12, 2015 Subsequent Event [Member]	Feb. 19, 2015 Subsequent Event [Member]
Subsequent Event [Line Items]
Quarterly cash dividend declared per common stock				$ 0.07
Dividends paid per common share	$ 0.28	$ 0.14	$ 0.07
Dividends payable, recorded date				Mar. 02, 2015
Dividends payable, date to be paid				Mar. 12, 2015

Accounts Receivable - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Receivables [Abstract]
Total unbilled receivables	$ 11.6	$ 12.8
Unbilled receivables billing period	1 month

Earnings Per Share - Additional Information (Detail)	12 Months Ended
Earnings Per Share - Additional Information (Detail)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Weighted average non-vested shares of restricted shares	31,230	95,656	4,597

Segment Reporting - Additional Information (Detail)	12 Months Ended
Segment Reporting - Additional Information (Detail)	Dec. 31, 2014 Segment
Segment Reporting [Abstract]
Number of reportable segment	2