Hub (HUBG) 10-K 26 Feb 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Feb. 17, 2016	Jun. 30, 2015
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Trading Symbol	HUBG
Entity Registrant Name	HUB GROUP INC
Entity Central Index Key	940,942
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,400,902,186
Class A Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		34,988,704
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		662,296

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 207,749	$ 109,769
Accounts receivable trade, net	379,987	401,803
Accounts receivable other	10,344	24,886
Prepaid taxes	362	14,937
Deferred taxes	8,412	4,816
Prepaid expenses and other current assets	17,756	14,355
TOTAL CURRENT ASSETS	624,610	570,566
Restricted investments	21,108	21,944
Property and equipment, net	374,847	338,327
Other intangibles, net	13,139	14,434
Goodwill, net	262,594	262,813
Other assets	4,848	4,043
TOTAL ASSETS	1,301,146	1,212,127
CURRENT LIABILITIES:
Accounts payable trade	230,432	256,345
Accounts payable other	21,495	21,333
Accrued payroll	33,020	16,192
Accrued other	38,733	43,523
Current portion of capital lease	2,608	2,504
Current portion of long term debt	32,409	19,619
TOTAL CURRENT LIABILITIES	358,697	359,516
Long term debt	100,895	72,460
Non-current liabilities	20,233	22,929
Long term portion of capital lease	13,299	15,937
Deferred taxes	$ 160,182	$ 140,501
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value; 2,000,000 shares authorized; no shares issued or outstanding in 2015 and 2014
Additional paid-in capital	$ 174,285	$ 171,235
Purchase price in excess of predecessor basis, net of tax benefit of $10,306	(15,458)	(15,458)
Retained earnings	660,758	589,809
Accumulated other comprehensive loss	(178)	(77)
Treasury stock; at cost, 5,590,831 shares in 2015 and 4,977,468 shares in 2014	(171,986)	(145,144)
TOTAL STOCKHOLDERS' EQUITY	647,840	600,784
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,301,146	1,212,127
Class A Common Stock [Member]
STOCKHOLDERS' EQUITY:
Common stock	412	412
Class B Common Stock [Member]
STOCKHOLDERS' EQUITY:
Common stock	$ 7	$ 7

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Purchase price in excess of predecessor basis, tax benefit	$ 10,306
Treasury stock, shares	5,590,831	4,977,468
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	97,337,700	97,337,700
Common stock, shares issued	41,224,792	41,224,792
Common stock, shares outstanding	35,633,961	36,247,324
Class B Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	662,300	662,300
Common stock, shares issued	662,296	662,296
Common stock, shares outstanding	662,296	662,296

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Revenue	$ 3,525,595	$ 3,571,126	$ 3,373,898
Transportation costs	3,112,900	3,200,691	3,002,875
Gross margin	412,695	370,435	371,023
Costs and expenses:
Salaries and benefits	158,938	136,480	135,341
Agent fees and commissions	68,724	62,041	55,789
General and administrative	60,015	58,014	56,772
Depreciation and amortization	7,988	7,799	6,470
Driver settlements and related costs		10,343
Impairment of software		11,881
Impairment of trade name			2,904
Total costs and expenses	295,665	286,558	257,276
Operating income	117,030	83,877	113,747
Other income (expense):
Interest expense	(2,971)	(1,785)	(1,246)
Interest and dividend income	83	32	82
Other, net	(2,560)	(257)	(28)
Total other expense	(5,448)	(2,010)	(1,192)
Income before provision for income taxes	111,582	81,867	112,555
Provision for income taxes	40,633	30,309	43,445
Net income	70,949	51,558	69,110
Other comprehensive income (loss):
Foreign currency translation adjustments	(101)	8	(86)
Total comprehensive income	$ 70,848	$ 51,566	$ 69,024
Basic earnings per common share	$ 1.98	$ 1.41	$ 1.88
Diluted earnings per common share	$ 1.97	$ 1.40	$ 1.87
Basic weighted average number of shares outstanding	35,876	36,590	36,829
Diluted weighted average number of shares outstanding	35,968	36,732	36,982

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Total	Class A and B Common Stock [Member]	Additional Paid-in Capital [Member]	Purchase Price Of Excess Of Predecessor Basis, Net Of Tax [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2012	$ 500,897	$ 419	$ 167,765	$ (15,458)	$ 469,141	$ 1	$ (120,971)
Beginning Balance (in shares) at Dec. 31, 2012		41,887,088					(4,457,307)
Purchase of treasury shares	(13,791)						$ (13,791)
Purchase of treasury shares (in shares)							(377,906)
Stock tendered for payments of withholding taxes	(2,634)						$ (2,634)
Stock tendered for payments of withholding taxes (in shares)							(75,995)
Issuance of restricted stock awards, net of forfeitures			(7,990)				$ 7,990
Issuance of restricted stock awards, net of forfeitures (in shares)							296,300
Share-based compensation expense	7,667		7,667
Exercise of non-qualified options	41		(408)				$ 449
Exercise of non-qualified options (in shares)							16,500
Tax benefit of share-based compensation plans	323		323
Net income	69,110				69,110
Foreign currency translation adjustment	(86)					(86)
Ending Balance at Dec. 31, 2013	561,527	$ 419	167,357	(15,458)	538,251	(85)	$ (128,957)
Ending Balance (in shares) at Dec. 31, 2013		41,887,088					(4,598,408)
Purchase of treasury shares	(18,024)						$ (18,024)
Purchase of treasury shares (in shares)							(501,271)
Stock tendered for payments of withholding taxes	(3,195)						$ (3,195)
Stock tendered for payments of withholding taxes (in shares)							(80,772)
Issuance of restricted stock awards, net of forfeitures			(5,032)				$ 5,032
Issuance of restricted stock awards, net of forfeitures (in shares)							202,983
Share-based compensation expense	8,258		8,258
Tax benefit of share-based compensation plans	652		652
Net income	51,558				51,558
Foreign currency translation adjustment	8					8
Ending Balance at Dec. 31, 2014	600,784	$ 419	171,235	(15,458)	589,809	(77)	$ (145,144)
Ending Balance (in shares) at Dec. 31, 2014		41,887,088					(4,977,468)
Purchase of treasury shares	$ (28,823)						$ (28,823)
Purchase of treasury shares (in shares)	(735,524)						(735,524)
Stock tendered for payments of withholding taxes	$ (2,916)						$ (2,916)
Stock tendered for payments of withholding taxes (in shares)							(77,732)
Issuance of restricted stock awards, net of forfeitures			(4,897)				$ 4,897
Issuance of restricted stock awards, net of forfeitures (in shares)							199,893
Share-based compensation expense	7,833		7,833
Tax benefit of share-based compensation plans	114		114
Net income	70,949				70,949
Foreign currency translation adjustment	(101)					(101)
Ending Balance at Dec. 31, 2015	$ 647,840	$ 419	$ 174,285	$ (15,458)	$ 660,758	$ (178)	$ (171,986)
Ending Balance (in shares) at Dec. 31, 2015		41,887,088					(5,590,831)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 70,949	$ 51,558	$ 69,110
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	37,042	29,380	21,302
Impairment of software		11,881
Impairment of trade name			2,904
Deferred taxes	16,378	24,501	16,438
Compensation expense related to share-based compensation plans	7,833	8,258	7,667
Gain on sale of assets	(129)	(46)	(167)
Excess tax benefits from share based compensation	(81)		(13)
Changes in operating assets and liabilities:
Restricted investments	836	(1,190)	(3,536)
Accounts receivable, net	36,373	(28,621)	(25,420)
Prepaid taxes	14,575	(14,533)	(308)
Prepaid expenses and other current assets	(3,401)	(1,621)	(2,137)
Other assets	(805)	(2,047)	(682)
Accounts payable	(25,736)	20,370	27,635
Accrued expenses	20,505	367	1,736
Non-current liabilities	(2,642)	284	2,888
Net cash provided by operating activities	171,697	98,541	117,417
Cash flows from investing activities:
Proceeds from sale of equipment	2,309	612	1,837
Purchases of property and equipment	(83,042)	(119,171)	(110,917)
Net cash used in investing activities	(80,733)	(118,559)	(109,080)
Cash flows from financing activities:
Proceeds from issuance of debt	64,442	91,084	9,120
Repayments of long term debt	(23,217)	(7,251)	(874)
Proceeds from stock options exercised	0	0	41
Stock tendered for payments of withholding taxes	(2,916)	(3,195)	(2,634)
Purchase of treasury stock	(28,823)	(18,024)	(13,791)
Capital lease payments	(2,534)	(2,449)	(2,329)
Excess tax benefits from share-based compensation	195	652	336
Net cash provided by (used in) financing activities	7,147	60,817	(10,131)
Effect of exchange rate changes on cash and cash equivalents	(131)	6	(2)
Net increase (decrease) in cash and cash equivalents	97,980	40,805	(1,796)
Cash and cash equivalents beginning of the year	109,769	68,964	70,760
Cash and cash equivalents end of the year	207,749	109,769	68,964
Supplemental disclosures of cash paid for:
Interest	2,977	1,532	1,201
Income taxes	$ 6,990	$ 20,189	$ 29,728

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	NOTE 1. Description of Business and Summary of Significant Accounting Policies Business : Hub Group, Inc. (“we”, “us” or “our”) provides intermodal transportation services utilizing primarily third party arrangements with railroads. Drayage can be provided by our subsidiary, Hub Group Trucking, Inc., or a third party company. We also arrange for transportation of freight by truck and perform logistics services. Transportation services are provided through our legacy business and our acquisition, Mode Transportation, LLC. We report two distinct business segments. The first segment is Mode, which includes the Mode business we acquired on April 1, 2011. The other segment is Hub, which is all business other than Mode. “Hub Group” includes both segments. Principles of Consolidation : The consolidated financial statements include our accounts and all entities in which we have more than a 50% equity ownership or otherwise exercise unilateral control. All significant intercompany balances and transactions have been eliminated. Cash and Cash Equivalents : We consider as cash equivalents all highly liquid instruments with an original maturity of three months or less. As of December 31, 2015 and 2014, our cash and temporary investments were with high quality financial institutions in DDAs (Demand Deposit Accounts) and Savings Accounts. Accounts Receivable and Allowance for Uncollectible Accounts: In the normal course of business, we extend credit to customers after a review of each customer’s credit history. An allowance for uncollectible trade accounts has been established through an analysis of the accounts receivable aging, an assessment of collectability based on historical trends and an evaluation based on current economic conditions. To be more specific, we reserve a portion of every account balance that has aged over one year, a portion of receivables for customers in bankruptcy and certain account balances specifically identified as uncollectible. On an annual basis, we perform a hindsight analysis on Hub and Mode separately to determine each segment’s experience in collecting account balances over one year old and account balances in bankruptcy. We then use this hindsight analysis to establish our reserves for receivables over one year and in bankruptcy. In establishing a reserve for certain account balances specifically identified as uncollectible, we consider the aging of the customer receivables, the specific details as to why the receivable has not been paid, the customer’s current and projected financial results, the customer’s ability to meet and sustain their financial commitments, the positive or negative effects of the current and projected industry outlook and the general economic conditions. The allowance for uncollectible accounts is reported on the balance sheet in net accounts receivable. Our reserve for uncollectible accounts was approximately $5.2 million and $7.0 million as of December 31, 2015 and 2014, respectively. Receivables are written off once collection efforts have been exhausted. Recoveries of receivables previously charged off are recorded when received. Property and Equipment : Property and equipment are stated at cost. Depreciation of property and equipment is computed using the straight-line method at rates adequate to depreciate the cost of the applicable assets over their expected useful lives: building and improvements, up to 40 years; leasehold improvements, the shorter of useful life or lease term; computer equipment and software, up to 10 years; furniture and equipment, up to 10 years; and transportation equipment up to 15 years. Direct costs related to internally developed software projects are capitalized and amortized over their expected useful life on a straight-line basis not to exceed 10 years. Interest is capitalized on qualifying assets under development for internal use. Maintenance and repairs are charged to operations as incurred and major improvements are capitalized. The cost of assets retired or otherwise disposed of and the accumulated depreciation thereon are removed from the accounts with any gain or loss realized upon sale or disposal charged or credited to operations. We review long-lived assets for impairment when events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. In the event that the undiscounted future cash flows resulting from the use of the asset group is less than the carrying amount, an impairment loss equal to the excess of the assets carrying amount over its fair value, less cost to dispose, is recorded. Goodwill and Other Intangibles : Goodwill represents the excess of purchase price over the fair market value of net assets acquired in connection with our business combinations. Goodwill and intangible assets that have indefinite useful lives are not amortized but are subject to annual impairment tests. We test goodwill for impairment annually in the fourth quarter or when events or changes in circumstances indicate the carrying value of this asset might exceed the current fair value. We test goodwill for impairment at the reporting unit level. We assess qualitative factors such as current company performance and overall economic factors to determine if it is more-likely-than-not that the goodwill might be impaired and whether it is necessary to perform the quantitative goodwill 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. In 2015 and 2014, we performed the qualitative assessment on both the Hub and Mode reporting units. No impairment charge was recognized based on the results of the goodwill impairment tests. On January 1, 2013, we adopted the FASB’s new accounting guidance regarding indefinite-lived intangibles which permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of the indefinite lived intangible asset is less than its carrying amount as a basis for determining whether it is necessary to perform the quantitative test discussed above. As a result of our impairment analysis, we recorded an impairment charge of $2.9 million in 2013, which is included in the Impairment of Trade Name line item in the Consolidated Statements of Income and Comprehensive Income. See Note 6 to the consolidated financial statements for information on this impairment charge. We evaluate the potential impairment of finite-lived acquired intangible assets when impairment indicators exist. If the carrying value is no longer recoverable based upon the undiscounted future cash flows of the asset, the amount of the impairment is the difference between the carrying amount and the fair value of the asset. Concentration of Credit Risk : Our financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. We place our cash and temporary investments with high quality financial institutions in DDAs (Demand Deposit Accounts) and Savings Accounts. We primarily serve customers located throughout the United States with no significant concentration in any one region. No one customer accounted for more than 10% of revenue in 2015, 2014 or 2013. We review a customer’s credit history before extending credit. In addition, we routinely assess the financial strength of our customers and, as a consequence, believe that our trade accounts receivable risk is limited. Revenue Recognition : Revenue is recognized at the time 1) persuasive evidence of an arrangement exists, 2) services have been rendered, 3) the sales price is fixed and determinable and 4) collectability is reasonably assured. Revenue and related transportation costs are recognized based on relative transit time. Further, in most cases, we report our revenue on a gross basis because we are the primary obligor as we are responsible for providing the service desired by the customer. Our customers view us as responsible for fulfillment including the acceptability of the service. Services requirements may include, for example, on-time delivery, handling freight loss and damage claims, setting up appointments for pick-up and delivery and tracing shipments in transit. We have discretion in setting sales prices and as a result, the amount we earn varies. In addition, we have the discretion to select our vendors from multiple suppliers for the services ordered by our customers. Finally, we have credit risk for our receivables. These three factors, discretion in setting prices, discretion in selecting vendors and credit risk, further support reporting revenue on a gross basis for most of our revenue. Provision for Income Taxes : Deferred income taxes are recognized for the future tax effects of temporary differences between financial and income tax reporting using tax rates in effect for the years in which the differences are expected to reverse. We believe that it is more likely than not that our deferred tax assets will be realized based on future taxable income projections with the exception of $0.1 million related to state tax net operating losses for which a valuation allowance has been established. In the event the probability of realizing the remaining deferred tax assets do not meet the more likely than not threshold in the future, a valuation allowance would be established for the deferred tax assets deemed unrecoverable. Tax liabilities are recorded when, in management’s judgment, a tax position does not meet the more likely than not threshold for recognition as prescribed by the guidance. For tax positions that meet the more likely than not threshold, a tax liability may be recorded depending on management’s assessment of how the tax position will ultimately be settled. We recognize interest expense and penalties related to income tax liabilities in our provision for income taxes. Earnings Per Common Share : Basic earnings per common share are based on the average quarterly weighted average number of Class A and Class B shares of common stock outstanding. Diluted earnings per common share are adjusted for the assumed exercise of dilutive stock options and for restricted stock which are both computed using the treasury stock method. Stock Based Compensation: Share-based compensation includes the restricted stock awards expected to vest based on the grant date fair value. Compensation expense is amortized straight-line over the vesting period including an estimate of forfeitures and is included in salaries and benefits. We present excess tax benefits resulting from the exercise of share-based compensation as financing cash in-flows and as operating cash out-flows in the Consolidated Statements of Cash Flows. New Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued Update No. 2014-09—Revenue from Contracts with Customers (Topic 606). This Standard provides guidance on how to recognize 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. For public organizations, the guidance in the update is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The update provides two transition methods to the new guidance: a retrospective approach and a modified retrospective approach. Early application is permitted for annual reporting periods beginning after December 15, 2016. We plan to adopt this standard January 1, 2018, as required. We are awaiting the Joint Transition Resource Group for Revenue Recognition’s (TRG) guidance on principal versus agent (reporting revenue gross versus net) to complete our assessment of the effect of this pronouncement on our consolidated financial statements. We are currently evaluating the transition method and effect this update will have on our consolidated financial statements. In November 2015, the Financial Accounting Standards Board (“FASB”) issued Update No. 2015-17—Income Taxes (Topic 740). This Standard provides guidance on the balance sheet classification of deferred taxes, amending the accounting for income taxes and requiring all deferred tax assets and liabilities to be classified as non-current on the consolidated balance sheet. We are currently evaluating the method of adoption and expect this Standard will have an impact on our consolidated balance sheets as our current deferred tax assets were $8.4 million as of December 31, 2015. Use of Estimates : The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period. Significant estimates include the allowance for doubtful accounts, revenue, the cost of transportation, commission expense and useful lives of equipment. Actual results could differ from those estimates. Reclassifications: Certain prior year immaterial amounts have been reclassified in the segment footnote to conform with the current year presentation.

Capital Structure

Capital Structure	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Capital Structure	NOTE 2. Capital Structure We have authorized common stock comprised of Class A Common Stock and Class B Common Stock. The rights of holders of Class A Common Stock and Class B Common Stock are identical, except each share of Class B Common Stock entitles its holder to approximately 80 votes, while each share of Class A Common Stock entitles its holder to one vote. We have authorized 2,000,000 shares of preferred stock.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 3. Earnings Per Share The following is a reconciliation of our earnings per share (in thousands, except for per share data): Years Ended, December 31, 2015 2014 2013 Net income for basic and diluted earnings per share $ 70,949 $ 51,558 $ 69,110 Weighted average shares outstanding - basic 35,876 36,590 36,829 Dilutive effect of stock options and restricted stock 92 142 153 Weighted average shares outstanding - diluted 35,968 36,732 36,982 Earnings per share - basic $ 1.98 $ 1.41 $ 1.88 Earnings per share - diluted $ 1.97 $ 1.40 $ 1.87

Impairment of Software

Impairment of Software	12 Months Ended
	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Impairment of Software	NOTE 4. Impairment of Software In 2014, the Hub segment recorded a full write-off of $11.9 million related to software development costs as a result of our decision to terminate a long-term technology project. Upon deployment in the third quarter of 2014, it was discovered that the software did not properly integrate with our current systems or meet the criteria for which it was designed. We did not believe the software could be cost effectively salvaged and it has no value on the open market. This charge is included in Impairment of software in the Consolidated Statements of Income and Comprehensive Income.

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Business Segments	NOTE 5. Business Segments We report two distinct business segments. The first segment is Mode, which includes the Mode LLC business we acquired on April 1, 2011. The second segment is Hub, which is all business other than Mode. Hub offers comprehensive intermodal, truck brokerage and logistics services. Our employees operate the freight through a network of operating centers located in the United States, Canada and Mexico. Each operating center is strategically located in a market with a significant concentration of shipping customers and one or more railheads. Hub has full time employees located throughout the United States, Canada and Mexico. Mode LLC markets and operates its freight transportation services, consisting of intermodal, truck brokerage and logistics, primarily through agents who enter into contractual arrangements with Mode LLC. The following is a summary of operating results, which includes the results of operations of the Mode segment for the years ended December 31, 2015, 2014 and 2013, and certain other financial data for our business segments (in thousands): Twelve Months Twelve Months Ended December 31, 2015 Ended December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Revenue $ 2,679,318 $ 928,661 $ (82,384 ) $ 3,525,595 $ 2,722,799 $ 931,131 $ (82,804 ) $ 3,571,126 Transportation costs 2,385,197 810,087 (82,384 ) 3,112,900 2,461,144 822,351 (82,804 ) 3,200,691 Gross margin 294,121 118,574 - 412,695 261,655 108,780 - 370,435 Costs and expenses: Salaries and benefits 143,993 14,945 - 158,938 122,097 14,383 - 136,480 Agent fees and commissions 56 68,668 - 68,724 45 61,996 - 62,041 General and administrative 53,023 6,992 - 60,015 51,108 6,906 - 58,014 Depreciation and amortization 6,688 1,300 - 7,988 6,238 1,561 - 7,799 Driver settlements and related costs - - - - 10,343 - - 10,343 Impairment of software - - - - 11,881 - - 11,881 Total costs and expenses 203,760 91,905 - 295,665 201,712 84,846 - 286,558 Operating income $ 90,361 $ 26,669 $ - $ 117,030 59,943 23,934 - 83,877 Capital expenditures $ 79,860 $ 3,182 $ - $ 83,042 $ 118,640 $ 531 $ - $ 119,171 Twelve Months Ended December 31, 2013 Inter- Hub Segment Group Hub Mode Elims Total Revenue $ 2,599,763 $ 823,159 $ (49,024 ) $ 3,373,898 Transportation costs 2,325,512 726,387 (49,024 ) 3,002,875 Gross margin 274,251 96,772 - 371,023 Costs and expenses: Salaries and benefits 120,478 14,863 - 135,341 Agent fees and commissions 1,372 54,417 - 55,789 General and administrative 50,484 6,288 - 56,772 Depreciation and amortization 4,326 2,144 - 6,470 Impairment of trade name 2,904 - - 2,904 Total costs and expenses 179,564 77,712 - 257,276 Operating income $ 94,687 $ 19,060 $ - $ 113,747 Capital expenditures $ 109,412 $ 1,505 $ - $ 110,917 The following tables summarize our revenue by segment and business line (in thousands): As of December 31, 2015 As of December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Total assets $ 1,127,042 $ 181,514 $ (7,410 ) $ 1,301,146 $ 1,030,722 $ 189,787 $ (8,382 ) $ 1,212,127 Goodwill 233,205 29,389 - 262,594 233,424 29,389 - 262,813 Twelve Months Twelve Months Ended December 31, 2015 Ended December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Intermodal $ 1,792,046 $ 483,910 $ (78,688 ) $ 2,197,268 $ 1,815,842 $ 466,859 $ (79,406 ) $ 2,203,295 Truck brokerage 355,402 314,498 (1,908 ) 667,992 338,590 335,587 (946 ) 673,231 Logistics 531,870 130,253 (1,788 ) 660,335 568,367 128,685 (2,452 ) 694,600 Total revenue $ 2,679,318 $ 928,661 $ (82,384 ) $ 3,525,595 $ 2,722,799 $ 931,131 $ (82,804 ) $ 3,571,126 Twelve Months Ended December 31, 2013 Inter- Hub Segment Group Hub Mode Elims Total Intermodal $ 1,818,162 $ 389,186 $ (46,401 ) $ 2,160,947 Truck brokerage 333,027 311,930 (1,453 ) 643,504 Logistics 448,574 122,043 (1,170 ) 569,447 Total revenue $ 2,599,763 $ 823,159 $ (49,024 ) $ 3,373,898

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	NOTE 6. Goodwill and Other Intangible Assets In accordance with the FASB issued guidance in the Intangibles-Goodwill and Other Topic of the Codification, we completed the required annual impairment tests. We performed a qualitative assessment on both the Hub segment goodwill and the Mode segment goodwill. No impairment charges were recognized based on the results of the annual goodwill assessments and there were no accumulated impairment losses of goodwill at the beginning of the period. The following table presents the carrying amount of goodwill (in thousands): Hub Group Hub Mode Total Balance at January 1, 2014 $ 233,643 $ 29,389 $ 263,032 Other (219 ) - (219 ) Balance at December 31, 2014 233,424 29,389 262,813 Other (219 ) - (219 ) Balance at December 31, 2015 $ 233,205 $ 29,389 $ 262,594 The changes noted as “other” in the table above for both 2015 and 2014 refer to the amortization of the income tax benefit of tax goodwill in excess of financial statement goodwill. In December 2013, we decided to change our branding strategy for Comtrak Logistics which resulted in us retiring the Comtrak name. We decided to change the name of Comtrak to Hub Group Trucking, Inc. as we believed the name change would allow us to benefit from the valuable Hub Group name with customers, vendors and drivers. In conjunction with the strategy, the Comtrak name was no longer used, resulting in no fair value and a write off of the asset. We recorded an impairment charge of $2.9 million in 2013, which is included in the Impairment of trade name line item in the Consolidated Statements of Income and Comprehensive Income. The components of the “Other intangible assets” are as follows (in thousands): Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2015: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (3,350 ) $ - $ 1,831 7-15 years Hub Total $ 5,181 $ (3,350 ) $ - $ 1,831 Mode Agency/customer relationships $ 15,362 $ (4,054 ) $ - $ 11,308 18 years Hub Group Total $ 20,543 $ (7,404 ) $ - $ 13,139 Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2014: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (2,909 ) $ - $ 2,272 7-15 years Trade name 2,904 - (2,904 ) - Indefinite Hub Total $ 8,085 $ (2,909 ) $ (2,904 ) $ 2,272 Mode Agency/customer relationships $ 15,362 $ (3,200 ) $ - $ 12,162 18 years Hub Group Total $ 23,447 $ (6,109 ) $ (2,904 ) $ 14,434 The above intangible assets are amortized using the straight-line method. Amortization expense, excluding impairment, for each of the years ended December 31, 2015, 2014 and 2013 was $1.3 million, $1.3 million and $1.4 million, respectively. The remaining weighted average life of all definite lived intangible assets as of December 31, 2015 was 4.49 years and 13.25 years for Hub and Mode, respectively. Amortization expense for the next five years is as follows (in thousands): Hub Group Hub Mode Total 2016 $ 442 $ 853 $ 1,295 2017 442 853 1,295 2018 395 853 1,248 2019 255 853 1,108 2020 255 853 1,108

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 7. Income Taxes The following is a reconciliation of our effective tax rate to the federal statutory tax rate: Years Ended December 31, 2015 2014 2013 U.S. federal statutory rate 35.0 % 35.0 % 35.0 % State taxes, net of federal benefit 2.4 2.9 3.2 State incentives (0.5 ) (0.8) (0.6 ) State law changes (0.9 ) (0.9) 0.1 Nondeductible expenses 0.4 0.9 0.8 Other - (0.1) 0.1 Net effective rate 36.4 % 37.0 % 38.6 % The following is a summary of our provision for income taxes (in thousands): Years Ended December 31, 2015 2014 2013 Current Federal $ 21,363 $ 5,939 $ 22,880 State and local 2,900 445 3,817 Foreign 284 249 205 24,547 6,633 26,902 Deferred Federal 16,538 23,600 15,920 State and local (346 ) 191 627 Foreign (106 ) (115 ) (4 ) 16,086 23,676 16,543 Total provision $ 40,633 $ 30,309 $ 43,445 The following is a summary of our deferred tax assets and liabilities (in thousands): December 31, 2015 2014 Reserve for uncollectible accounts receivable $ 1,672 $ 2,101 Accrued compensation 11,436 7,161 Other reserves 3,245 2,036 Current deferred tax assets 16,353 11,298 Accrued compensation 7,012 6,829 Other reserves 659 764 Operating loss carryforwards 1,914 1,387 Less valuation allowance (108 ) (108 ) Non-current deferred tax assets 9,477 8,872 Total deferred tax assets $ 25,830 $ 20,170 Prepaids $ (3,448 ) $ (1,551 ) Other receivables (4,493 ) (4,931 ) Current deferred tax liabilities (7,941 ) (6,482 ) Property and equipment (87,148 ) (67,726 ) Goodwill (82,511 ) (81,647 ) Non-current deferred tax liabilities (169,659 ) (149,373 ) Total deferred tax liabilities $ (177,600 ) $ (155,855 ) We are subject to income taxation in the U.S., numerous state jurisdictions, Mexico and Canada. Because income tax return formats vary among the states, we file both unitary and separate company state income tax returns. Our state tax net operating losses of $1.9 million expire between December 31, 2016 and December 31, 2035. Management believes it is more likely than not that the deferred tax assets will be realized with the exception of $0.1 million related to state tax net operating losses for which a valuation allowance has been established. As of December 31, 2015 and December 31, 2014, the amount of unrecognized tax benefits was consistent at $1.1 million. Of these amounts, our income tax provision would decrease $0.7 million for each year, if recognized. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): Balance at January 1, 2014 $ 459 Additions for tax positions taken in prior years 231 Additions for tax positions related to the current year 587 Reductions as a result of a lapse of the applicable statute of limitations (212 ) Balance at December 31, 2014 $ 1,065 Additions for tax positions taken in prior years 166 Additions for tax positions related to the current year 153 Reductions as a result of a lapse of the applicable statute of limitations (245 ) Balance at December 31, 2015 $ 1,139 We estimate it is reasonably possible that our reserve could either increase or decrease by $0.3 million during the next twelve months. We recognize interest expense and penalties related to income tax liabilities in our provision for income taxes. In our 2015 provision for income taxes we recognized approximately two Our most recent IRS examination reviewed our 2011 and 2012 tax years and closed in 2014 with no changes. No material examinations took place in 2015. Although no material examinations are currently in effect, tax years 2012 through 2014 generally remain open to examination by the major tax jurisdictions to which we are subject.

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurement	NOTE 8. Fair Value Measurement The carrying value of cash and cash equivalents, accounts receivable, accounts payable and long term debt materially approximated fair value as of December 31, 2015 and 2014 due to their short-term nature. We consider as cash equivalents all highly liquid instruments with an original maturity of three months or less. As of December 31, 2015 and 2014, our cash and temporary investments were with high quality financial institutions in (DDAs) Demand Deposit Accounts and Savings Accounts. Restricted investments included $21.1 million and $21.9 million as of December 31, 2015 and 2014, respectively, of mutual funds which are reported at fair value. Our assets and liabilities measured at fair value are based on valuation techniques which consider prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. These valuation methods are based on either quoted market prices (Level 1) or inputs, other than quoted prices in active markets, that are observable either directly or indirectly (Level 2). Cash and cash equivalents, accounts receivable and accounts payable are defined as “Level 1”, while long term debt is defined as “Level 2” of the fair value hierarchy in the Fair Value Measurements and Disclosures Topic of the Codification.

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Property and Equipment	NOTE 9. Property and Equipment Property and equipment consist of the following (in thousands): December 31, 2015 2014 Land $ 9,855 $ 9,855 Building and improvements 35,267 35,212 Leasehold improvements 4,419 4,241 Computer equipment and software 77,887 70,719 Furniture and equipment 13,260 12,931 Transportation equipment 405,322 346,055 546,010 479,013 Less: Accumulated depreciation and amortization (171,163 ) (140,686 ) Property and Equipment, net $ 374,847 $ 338,327 The increase in transportation equipment to $405.3 million in 2015 from $346.1 million in 2014 was due primarily to the purchase of tractors and containers. Included in the transportation equipment is a capital lease obligation entered into for $26.4 million in 2011. The balances as of December 31, 2015 and 2014, net of accumulated amortization, were $14.7 million and $17.4 million, respectively. Depreciation and amortization expense related to property and equipment was $35.9 million, $28.3 million and $20.2 million for 2015, 2014 and 2013, respectively, which includes $2.6 million of amortization expense associated with a capital lease for each of the years ending 2015, 2014 and 2013. This amortization expense is included in transportation costs. Transportation equipment depreciation is included in transportation costs.

Long-Term Debt and Financing Ar

Long-Term Debt and Financing Arrangements	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Long-Term Debt and Financing Arrangements	NOTE 10. Long-Term Debt and Financing Arrangements In December 2013, we amended our Credit Agreement to reduce the interest rate and commitment fees and extend the term until December 2018. The maximum unsecured borrowing capacity remained at $50.0 million. The interest rate under the Credit Agreement ranges from LIBOR plus 1.00% to 1.75% or Prime to Prime plus 0.75%. The commitment fees charged on the unused line of credit are between 0.10% and 0.25% per annum. The financial covenants require a total leverage ratio of not more than 3.0 to 1.0 and an interest coverage ratio of not less than 2.0 to 1.0. We have standby letters of credit that expire in 2016. As of December 31, 2015, our letters of credit were $8.2 million. Our unused and available borrowings under our bank revolving line of credit were $41.8 million as of December 31, 2015 and $43.9 million as of December 31, 2014. We were in compliance with our debt covenants as of December 31, 2015. We have entered into various Equipment Notes (“Notes”) for the purchase of tractors and containers. The Notes are secured by the underlying equipment financed in the agreements. Our outstanding debt is as follows (in thousands): Period Ended December 31, December 31, 2015 2014 Secured Equipment Notes due in December 2020 with monthly principal and interest payments of $0.6 million commencing in January 2016; interest is paid monthly at a fixed annual rate between 2.02% and 2.03% $ 33,066 $ - Secured Equipment Notes due in September 2020 with monthly principal and interest payments of $0.2 million commencing in October 2015; interest is paid monthly at a fixed annual rate of 1.84% 12,214 - Secured Equipment Notes due in July 2020 with monthly principal and interest payments of $0.1 million commencing in July 2015; interest is paid monthly at a fixed annual rate of 2.14% 6,395 - Secured Equipment Notes due in March 2020 with monthly principal and interest payments of $0.04 million commencing in April 2015; interest is paid monthly at a fixed annual rate of 2.14% 1,998 - Secured Equipment Notes due in January 2020 with monthly principal and interest payments of $0.2 million commencing in February 2015; interest is paid monthly at a fixed annual rate between 1.72% and 2.26% 7,533 - Secured Equipment Notes due in December 2019 with monthly principal and interest payments of $0.2 million commencing in January 2015; interest is paid monthly at a fixed annual rate of 2.24% 10,828 13,387 Secured Equipment Notes due in November 2019 with monthly principal and interest payments of $0.5 million commencing in December 2014; interest is paid monthly at a fixed annual rate of 2.05% 22,514 28,429 Secured Equipment Notes due in September 2019 with monthly principal and interest payments of $0.4 million commencing in September 2014; interest is paid monthly at a fixed annual rate of 2.15% 18,170 22,772 Secured Equipment Notes due in February 2019 with monthly principal and interest payments of $0.4 million commencing in January 2014; interest is paid monthly at a fixed annual rate between 1.87% and 1.93% 15,974 21,016 Secured Equipment Notes due in June 2018 with quarterly principal and interest payments of $0.5 million commencing in August 2013; interest is paid quarterly at a fixed annual rate between 1.9% and 2.0% 4,612 6,475 133,304 92,079 Less current portion (32,409 ) (19,619 ) Total long-term debt $ 100,895 $ 72,460 Aggregate principal payments, in thousands, due subsequent to December 31, 2015, are as follows: 2016 $ 32,409 2017 32,772 2018 32,449 2019 25,766 2020 9,908 $ 133,304 In 2011, we entered into a lease agreement for 3,126 chassis for a period of 10 years. We are accounting for this lease as a capital lease. Interest on this capital lease obligation is based on interest rates that approximate currently available interest rates; therefore, indebtedness under this capital lease obligation approximates fair value. We paid interest of $0.7 million, $0.8 million and $0.9 million in 2015, 2014 and 2013, respectively, related to this capital lease.

Leases, User Charges and Commit

Leases, User Charges and Commitments	12 Months Ended
	Dec. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Leases, User Charges and Commitments	NOTE 11. Leases, User Charges and Commitments Minimum annual capital and operating lease payments, as of December 31, 2015, under non-cancelable leases, principally for containers, chassis, other equipment and real estate, as well as other commitments are payable as follows (in thousands): Future Payments Due: Operating Leases and Capital Other Lease Commitments Total 2016 $ 3,182 $ 8,883 $ 12,065 2017 3,173 4,992 8,165 2018 3,173 2,841 6,014 2019 3,173 1,455 4,628 2020 3,182 1,405 4,587 2021 and thereafter 1,845 5,003 6,848 $ 17,728 $ 24,579 $ 42,307 Less: Imputed interest (1,821 ) Net capital lease liability $ 15,907 Total rental expense included in general and administrative expense, which relates primarily to real estate, was approximately $8.0 million in 2015, $8.1 million in 2014 and $10.1 million in 2013. Many of the real estate leases contain renewal options and escalation clauses which require payments of additional rent to the extent of increases in the related operating costs. We straight-line rental expense in accordance with the FASB guidance in the Leases Topic of the Codification. We incur rental expense for our leased containers, tractors and trailers that are included in transportation costs and totaled $11.9 million, $13.1 million, and $10.2 million for 2015, 2014 and 2013, respectively. We incur user charges for use of a fleet of rail owned chassis, chassis under capital lease and dedicated rail owned containers on the Union Pacific and Norfolk Southern railroads which are included in transportation costs. Such charges were $74.3 million, $67.8 million and $69.1 million for 2015, 2014 and 2013, respectively. As of December 31, 2013, we have the ability to return the majority of the containers and pay for the rail owned chassis only when we are using them under these agreements. As a result, no minimum commitments related to these rail owned chassis and containers have been included in the table above. In addition to the commitments above, in December 2015, we committed to acquire 1,000 53’ containers. We expect the .

Guarantees

Guarantees	12 Months Ended
	Dec. 31, 2015
Guarantees [Abstract]
Guarantees	NOTE 12. Guarantees As a recruiting tool for our owner-operators, we are guaranteeing certain owner-operators’ lease payments for tractors. The guarantees expire at various dates through 2020. The potential maximum exposure under these lease guarantees was approximately $10.3 million and $27.2 million as of December 31, 2015 and 2014, respectively. The potential maximum exposure represents the amount of the remaining lease payments on all outstanding guaranteed leases as of December 31, 2015 and 2014. However, upon default, we have the option to purchase the tractors. We could then sell the tractors and use the proceeds to recover all or a portion of the amounts paid under the guarantees. Alternatively, we can contract with another owner operator who would assume the lease or continue to operate the leased tractor in our company fleet. There were no material defaults during the years ended December 31, 2015 and 2014 and no potential material defaults. We had a liability of approximately $0.1 million at December 31, 2015 and $0.3 million as of December 31, 2014, representing the fair value for estimated defaults of the guarantees, based on a discounted cash-flow analysis which is included in current and non-current liabilities in our Consolidated Balance Sheets. We are amortizing the amounts over the remaining lives of the respective guarantees.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation Plans	NOTE 13. Stock-Based Compensation Plans In 1996, we adopted a Long-Term Incentive Plan (the “1996 Incentive Plan”). The number of shares of Class A Common Stock reserved for issuance under the 1996 Incentive Plan was 1,800,000. In 1997, we adopted a second Long-Term Incentive Plan (the “1997 Incentive Plan”). The number of shares of Class A Common Stock reserved for issuance under the 1997 Incentive Plan was 600,000. In 1999 we adopted a third Long-Term Incentive Plan (the “1999 Incentive Plan”). The number of shares of Class A Common Stock reserved for issuance under the 1999 Incentive Plan was 2,400,000. In 2002, we adopted a fourth Long-Term Incentive Plan (the “2002 Incentive Plan”). The number of shares of Class A Common Stock reserved for issuance under the 2002 Incentive Plan was 2,400,000. In 2003, we amended our 2002 Incentive Plan to add an additional 2,000,000 shares of Class A Common Stock that are reserved for issuance. In 2007, we amended our 2002 Incentive Plan to add an additional 1,000,000 shares of Class A Common Stock that are reserved for issuance. Under the 2002 Incentive Plan, stock options, stock appreciation rights, restricted stock, restricted stock units and performance units may be granted for the purpose of attracting and motivating our key employees and non-employee directors. We have not granted any stock options since 2003 and have no stock options outstanding. Restricted stock vests over a three to five year period. As of December 31, 2015, 526,747 shares were available for future grant. When stock options are exercised, either new shares are issued or shares are issued out of treasury. Share-based compensation expense for 2015, 2014 and 2013 was $7.8 million, $8.3 million and $7.7 million or $5.0 million, $5.2 million and $4.6 million, net of taxes, respectively. Intrinsic value for stock options is defined as the difference between the current market value and the grant price. There were no options exercised during the year ended December 31, 2015 or 2014. The total intrinsic value of options exercised during the year ended December 31, 2013 was $0.6 million. Cash received from stock options exercised during the year ended December 31, 2013 was $0.04 million. The tax benefit realized for tax deductions from stock options exercised for the year ended December 31, 2013 was $0.2 million. The following table summarizes the non-vested restricted stock activity for the year ended December 31, 2015: Weighted Average Grant Date Non-vested restricted stock Shares Fair Value Non-vested January 1, 2015 728,670 $ 35.81 Granted 338,531 $ 37.60 Vested (232,466) $ 34.49 Forfeited (138,638) $ 36.33 Non-vested at December 31, 2015 696,097 $ 37.02 The following table summarizes the restricted stock granted during the respective years: Restricted stock grants 2015 2014 2013 Employees 316,531 273,910 280,900 Outside directors 22,000 20,000 20,000 Total 338,531 293,910 300,900 Weighted average grant date fair value $ 37.60 $ 39.66 $ 34.64 Vesting period 3-5 years 3-5 years 3-5 years The fair value of non-vested restricted stock is equal to the market price of our stock at the date of grant. The total fair value of restricted shares vested during the years ended December 31, 2015, 2014 and 2013 was $8.7 million, $9.4 million and $7.5 million, respectively. As of December 31, 2015, there was $19.3 million of unrecognized compensation cost related to non-vested share-based compensation that is expected to be recognized over a weighted average period of 2.94 years. During January 2016, we granted 339,852 shares of restricted stock to certain employees and 22,000 shares of restricted stock to outside directors with a weighted average grant date fair value of $32.95. The stock vests over a three to five year period.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2015
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	NOTE 14. Employee Benefit Plans We had one profit-sharing plan and trust as of December 31, 2015, 2014 and 2013, all under section 401(k) of the Internal Revenue Code. At our discretion, we partially match qualified contributions made by employees to the plan. We incurred expense of $1.9 million, $1.9 million and $1.8 million related to this plan in 2015, 2014, and 2013, respectively. In January 2005, we established the Hub Group, Inc. Nonqualified Deferred Compensation Plan (the “Plan”) to provide added incentive for the retention of certain key employees. Under the Plan, participants can elect to defer certain compensation. Accounts will grow on a tax-deferred basis to the participant. Restricted investments included in the Consolidated Balance Sheets represent the fair value of the mutual funds and other security investments related to the Plan as of December 31, 2015 and 2014. Both realized and unrealized gains and losses are included in income and expense and offset the change in the deferred compensation liability. We provide a 50% match on the first 6% of employee compensation deferred under the Plan, with a maximum match equivalent to 3% of base salary. In addition, we have a legacy deferred compensation plan. There are no new contributions being made into this legacy plan. We incurred expense of $0.3 million, $0.3 million and $0.4 million related to the employer match for these plans in 2015, 2014 and 2013, respectively. The liabilities related to these plans as of December 31, 2015 and 2014 were $21.3 million and $22.4 million, respectively.

Legal Matters

Legal Matters	12 Months Ended
	Dec. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Legal Matters	NOTE 15. Legal Matters Robles On January 25, 2013, a complaint was filed in the U.S. District Court for the Eastern District of California (Sacramento Division) by Salvador Robles against our subsidiary, Comtrak Logistics, Inc., now known as Hub Group Trucking, Inc. Mr. Robles drove a truck for Hub Group Trucking in California, first as an independent contractor and then as an employee. The action was brought on behalf of a class comprised of present and former California-based truck drivers for Hub Group Trucking who were classified as independent contractors, from January 2009 to August 2014. The complaint alleges Hub Group Trucking has misclassified such drivers as independent contractors and that such drivers were employees. The complaint asserts various violations of the California Labor Code and claims that Hub Group Trucking has engaged in unfair competition practices. The complaint seeks, among other things, declaratory and injunctive relief, compensatory damages and attorney’s fees. In May 2013, the complaint was amended to add similar claims based on Mr. Robles’ status as an employed company driver. These additional claims are only on behalf of Mr. Robles and not a putative class. The Company believes that the California independent contractor truck drivers were properly classified as independent contractors at all times. Nevertheless, because lawsuits are expensive, time-consuming and could interrupt our business operations, Hub Group Trucking decided to make settlement offers to individual drivers with respect to the claims alleged in this lawsuit, without admitting liability. As of December 31, 2015, 93% of the California drivers have accepted the settlement offers. In late 2014, Hub Group Trucking decided to convert its model from independent contractors to employee drivers in California. On April 3, 2015, the Robles case was transferred to the U.S. District Court for the Western District of Tennessee (Western Division) in Memphis. In May 2015, the plaintiffs in the Robles case filed a Second Amended Complaint (“SAC”) which names 334 current and former Hub Group Trucking drivers as “interested putative class members.” In addition to reasserting their existing claims, the SAC includes claims post-conversion, added two new plaintiffs and seeks a judicial declaration that the settlement agreements are unenforceable. In June 2015, Hub Group Trucking filed a motion to dismiss the SAC. This motion is fully briefed and Hub Group Trucking is awaiting a ruling from the Court. Adame, Et Al. v Hub Group, Inc., Et Al. On August 5, 2015, the Plaintiffs’ law firm in the Robles case filed a lawsuit in state court in San Bernardino County, California on behalf of 63 named Plaintiffs against Hub Group Trucking and five Company employees. The lawsuit alleges claims similar to those being made in Robles and seeks monetary penalties under the Private Attorneys General Act. Of the 63 named Plaintiffs, at least 58 of them previously accepted the settlement offers referenced above. On October 29, 2015, Defendants filed a notice of removal to remove the case from state court in San Bernardino to federal court in the Central District of California. On November 19, 2015, Defendants filed a motion to transfer the case to federal court in Memphis, Tennessee and also filed a motion to dismiss the case pursuant to a clause in the independent contractor agreement stating that Tennessee law applies. Also on November 19, 2015, Plaintiffs filed a motion to remand the case back to state court, claiming that the federal court lacks jurisdiction over the case. Lubinski On September 12, 2014, a complaint was filed in the U.S. District Court for the Northern District of Illinois (Eastern Division) by Christian Lubinski against Hub Group Trucking. The action was brought on behalf of a class comprised of present and former owner-operators providing delivery services in Illinois for Hub Group Trucking. The complaint alleged Hub Group Trucking misclassified such drivers as independent contractors and that such drivers were employees. The complaint alleged that Hub Group Trucking made illegal deductions from the drivers’ pay and failed to properly compensate the drivers for all hours worked, reimburse business expenses, pay employment taxes, and provide workers’ compensation and other employment benefits. The complaint asserted various violations of the Illinois Wage Payment and Collections Act and claimed that Hub Group Trucking was unjustly enriched. The complaint sought, among other things, monetary damages for the relevant statutory period and attorneys’ fees. On October 24, 2014, the Lubinski case was transferred to the U.S. District Court for the Western District of Tennessee (Western Division), in Memphis. On September 22, 2015, the court granted Hub Group Trucking’s motion to dismiss Lubinski’s Illinois law claims with prejudice based on the contractual choice of law provision providing that Tennessee law governed. The court denied as moot Hub Group Trucking’s motion to dismiss based on federal preemption. On October 2, 2015, Lubinski appealed this order to the United States Court of Appeals for the Sixth Circuit in Cincinnati. We cannot reasonably estimate at this time the possible loss or range of loss, if any, that may arise from the remaining unresolved claims in the above mentioned lawsuits. We are a party to other litigation incident to our business, including claims for personal injury and/or property damage, bankruptcy preference claims, and claims regarding freight lost or damaged in transit, improperly shipped or improperly billed. Some of the lawsuits to which we are party are covered by insurance and are being defended by our insurance carriers. Some of the lawsuits are not covered by insurance and we defend those ourselves. We do not believe that the outcome of this litigation will have a materially adverse effect on our financial position or results of operations.

Stock Buy Back Plans

Stock Buy Back Plans	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Stock Buy Back Plans	NOTE 16. Stock Buy Back Plans On October 22, 2014, our Board of Directors authorized the purchase of up to $75.0 million of our Class A Common Stock. This authorization expired on December 31, 2015. We purchased 735,524 and 501,271 shares under this authorization during the years ended December 31, 2015 and 2014, respectively. We purchased 77,732 shares for $2.9 million and 80,772 shares for $3.2 million during the years ended December 31, 2015 and 2014, respectively, related to employee withholding upon vesting of restricted stock. The following table displays the number of shares purchased during 2015 and the maximum value of shares that may yet be purchased under the plan: Maximum Value of Total Total Number of Shares that May Yet Number of Average Shares Purchased as Be Purchased Under Shares Price Paid Part of Publicly the Plan Purchased Per Share Announced Plan (in 000’s) January 1 to January 31 - $ - - $ 56,977 February 1 to February 28 341,020 $ 39.35 341,020 $ 43,577 March 1 to March 31 - $ - - $ 43,577 April 1 to April 30 - $ - - $ 43,577 May 1 to May 31 - $ - - $ 43,577 June 1 to June 30 - $ - - $ 43,577 July 1 to July 31 114,352 $ 38.58 114,352 $ 39,145 August 1 to August 31 198,923 $ 39.97 198,923 $ 31,194 September 1 to September 30 81,229 $ 37.43 81,229 $ 28,154 October 1 to October 31 - $ - - $ 28,154 November 1 to November 30 - $ - - $ 28,154 December 1 to December 31 - $ - - $ - Total 735,524 $ 39.19 735,524 $ - This table excludes 77,732 shares we purchased for $2.9 million during the year ended December 31, 2015 related to employee withholding upon vesting of restricted stock.

Selected Quarterly Financial Da

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (Unaudited)	NOTE 17. Selected Quarterly Financial Data (Unaudited) The following table sets forth the selected quarterly financial data for each of the quarters in 2015 (in thousands, except per share amounts): Quarter Ended March 31, June 30, September 30, December 31, 2015 2015 2015 2015 Year Ended December 31, 2015: Revenue $ 835,941 $ 899,513 $ 899,869 $ 890,272 Gross margin 89,128 101,729 105,064 116,774 Operating income 18,795 29,476 33,418 35,341 Net income 10,276 18,467 19,832 22,374 Basic earnings per share $ 0.28 $ 0.51 $ 0.55 $ 0.63 Diluted earnings per share $ 0.28 $ 0.51 $ 0.55 $ 0.63 The following table sets forth the selected quarterly financial data for each of the quarters in 2014 (in thousands, except per share amounts): Quarter Ended March 31, June 30, September 30, December 31, 2014 2014 2014 2014 Year Ended December 31, 2014: Revenue $ 848,449 $ 893,930 $ 913,386 $ 915,361 Gross margin 88,744 98,585 93,196 89,910 Operating income 20,496 30,927 7,677 24,777 Net income 12,035 18,676 4,491 16,356 Basic earnings per share $ 0.33 $ 0.51 $ 0.12 $ 0.45 Diluted earnings per share $ 0.33 $ 0.51 $ 0.12 $ 0.45

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Event	NOTE 18. Subsequent Event On February 2, 2016, our Board of Directors authorized the purchases of up to $100 million of our Class A Common Stock. This authorization expires December 31, 2016. We may make purchases from time to time as market conditions warrant, and any repurchased shares are expected to be held in treasury for future use. As of February 23, 2016, we have purchased 916,773 shares for $31.1 million.

VALUATION AND QUALIFYING ACCOUN

VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2015
Valuation And Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II HUB GROUP, INC. VALUATION AND QUALIFYING ACCOUNTS AND RESERVES Allowance for uncollectible trade accounts Balance at Charged to Charged to Balance at Year Ended Beginning of Costs & Other End of December 31: Year Expenses Accounts (1) Deductions (2) Year 2015 $ 6,990,000 $ 270,000 $ (2,037,000 ) $ (8,000 ) $ 5,215,000 2014 $ 7,446,000 $ 129,000 $ (565,000 ) $ (20,000 ) $ 6,990,000 2013 $ 6,689,000 $ 662,000 $ 142,000 $ (47,000 ) $ 7,446,000 Deferred tax valuation allowance Balance at Charged to Balance at Year Ended Beginning of Costs & End of December 31: Year Expenses Year 2015 $ 108,000 $ - $ 108,000 2014 $ 108,000 $ - $ 108,000 2013 $ 122,000 $ (14,000 ) $ 108,000 (1) Expected customer account adjustments charged to revenue and write-offs, net of recoveries. (2) Represents bad debt recoveries.

Description of Business and S26

Description of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Business	Business : Hub Group, Inc. (“we”, “us” or “our”) provides intermodal transportation services utilizing primarily third party arrangements with railroads. Drayage can be provided by our subsidiary, Hub Group Trucking, Inc., or a third party company. We also arrange for transportation of freight by truck and perform logistics services. Transportation services are provided through our legacy business and our acquisition, Mode Transportation, LLC. We report two distinct business segments. The first segment is Mode, which includes the Mode business we acquired on April 1, 2011. The other segment is Hub, which is all business other than Mode. “Hub Group” includes both segments.
Principles of Consolidation	Principles of Consolidation : The consolidated financial statements include our accounts and all entities in which we have more than a 50% equity ownership or otherwise exercise unilateral control. All significant intercompany balances and transactions have been eliminated.
Cash and Cash Equivalents	Cash and Cash Equivalents : We consider as cash equivalents all highly liquid instruments with an original maturity of three months or less. As of December 31, 2015 and 2014, our cash and temporary investments were with high quality financial institutions in DDAs (Demand Deposit Accounts) and Savings Accounts.
Accounts Receivable and Allowance for Uncollectible Accounts	Accounts Receivable and Allowance for Uncollectible Accounts: In the normal course of business, we extend credit to customers after a review of each customer’s credit history. An allowance for uncollectible trade accounts has been established through an analysis of the accounts receivable aging, an assessment of collectability based on historical trends and an evaluation based on current economic conditions. To be more specific, we reserve a portion of every account balance that has aged over one year, a portion of receivables for customers in bankruptcy and certain account balances specifically identified as uncollectible. On an annual basis, we perform a hindsight analysis on Hub and Mode separately to determine each segment’s experience in collecting account balances over one year old and account balances in bankruptcy. We then use this hindsight analysis to establish our reserves for receivables over one year and in bankruptcy. In establishing a reserve for certain account balances specifically identified as uncollectible, we consider the aging of the customer receivables, the specific details as to why the receivable has not been paid, the customer’s current and projected financial results, the customer’s ability to meet and sustain their financial commitments, the positive or negative effects of the current and projected industry outlook and the general economic conditions. The allowance for uncollectible accounts is reported on the balance sheet in net accounts receivable. Our reserve for uncollectible accounts was approximately $5.2 million and $7.0 million as of December 31, 2015 and 2014, respectively. Receivables are written off once collection efforts have been exhausted. Recoveries of receivables previously charged off are recorded when received.
Property and Equipment	Property and Equipment : Property and equipment are stated at cost. Depreciation of property and equipment is computed using the straight-line method at rates adequate to depreciate the cost of the applicable assets over their expected useful lives: building and improvements, up to 40 years; leasehold improvements, the shorter of useful life or lease term; computer equipment and software, up to 10 years; furniture and equipment, up to 10 years; and transportation equipment up to 15 years. Direct costs related to internally developed software projects are capitalized and amortized over their expected useful life on a straight-line basis not to exceed 10 years. Interest is capitalized on qualifying assets under development for internal use. Maintenance and repairs are charged to operations as incurred and major improvements are capitalized. The cost of assets retired or otherwise disposed of and the accumulated depreciation thereon are removed from the accounts with any gain or loss realized upon sale or disposal charged or credited to operations. We review long-lived assets for impairment when events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. In the event that the undiscounted future cash flows resulting from the use of the asset group is less than the carrying amount, an impairment loss equal to the excess of the assets carrying amount over its fair value, less cost to dispose, is recorded.
Goodwill and Other Intangibles	Goodwill and Other Intangibles : Goodwill represents the excess of purchase price over the fair market value of net assets acquired in connection with our business combinations. Goodwill and intangible assets that have indefinite useful lives are not amortized but are subject to annual impairment tests. We test goodwill for impairment annually in the fourth quarter or when events or changes in circumstances indicate the carrying value of this asset might exceed the current fair value. We test goodwill for impairment at the reporting unit level. We assess qualitative factors such as current company performance and overall economic factors to determine if it is more-likely-than-not that the goodwill might be impaired and whether it is necessary to perform the quantitative goodwill 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. In 2015 and 2014, we performed the qualitative assessment on both the Hub and Mode reporting units. No impairment charge was recognized based on the results of the goodwill impairment tests. On January 1, 2013, we adopted the FASB’s new accounting guidance regarding indefinite-lived intangibles which permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of the indefinite lived intangible asset is less than its carrying amount as a basis for determining whether it is necessary to perform the quantitative test discussed above. As a result of our impairment analysis, we recorded an impairment charge of $2.9 million in 2013, which is included in the Impairment of Trade Name line item in the Consolidated Statements of Income and Comprehensive Income. See Note 6 to the consolidated financial statements for information on this impairment charge. We evaluate the potential impairment of finite-lived acquired intangible assets when impairment indicators exist. If the carrying value is no longer recoverable based upon the undiscounted future cash flows of the asset, the amount of the impairment is the difference between the carrying amount and the fair value of the asset.
Concentration of Credit Risk	Concentration of Credit Risk : Our financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. We place our cash and temporary investments with high quality financial institutions in DDAs (Demand Deposit Accounts) and Savings Accounts. We primarily serve customers located throughout the United States with no significant concentration in any one region. No one customer accounted for more than 10% of revenue in 2015, 2014 or 2013. We review a customer’s credit history before extending credit. In addition, we routinely assess the financial strength of our customers and, as a consequence, believe that our trade accounts receivable risk is limited.
Revenue Recognition	Revenue Recognition : Revenue is recognized at the time 1) persuasive evidence of an arrangement exists, 2) services have been rendered, 3) the sales price is fixed and determinable and 4) collectability is reasonably assured. Revenue and related transportation costs are recognized based on relative transit time. Further, in most cases, we report our revenue on a gross basis because we are the primary obligor as we are responsible for providing the service desired by the customer. Our customers view us as responsible for fulfillment including the acceptability of the service. Services requirements may include, for example, on-time delivery, handling freight loss and damage claims, setting up appointments for pick-up and delivery and tracing shipments in transit. We have discretion in setting sales prices and as a result, the amount we earn varies. In addition, we have the discretion to select our vendors from multiple suppliers for the services ordered by our customers. Finally, we have credit risk for our receivables. These three factors, discretion in setting prices, discretion in selecting vendors and credit risk, further support reporting revenue on a gross basis for most of our revenue.
Provision for Income Taxes	Provision for Income Taxes : Deferred income taxes are recognized for the future tax effects of temporary differences between financial and income tax reporting using tax rates in effect for the years in which the differences are expected to reverse. We believe that it is more likely than not that our deferred tax assets will be realized based on future taxable income projections with the exception of $0.1 million related to state tax net operating losses for which a valuation allowance has been established. In the event the probability of realizing the remaining deferred tax assets do not meet the more likely than not threshold in the future, a valuation allowance would be established for the deferred tax assets deemed unrecoverable. Tax liabilities are recorded when, in management’s judgment, a tax position does not meet the more likely than not threshold for recognition as prescribed by the guidance. For tax positions that meet the more likely than not threshold, a tax liability may be recorded depending on management’s assessment of how the tax position will ultimately be settled. We recognize interest expense and penalties related to income tax liabilities in our provision for income taxes.
Earnings Per Common Share	Earnings Per Common Share : Basic earnings per common share are based on the average quarterly weighted average number of Class A and Class B shares of common stock outstanding. Diluted earnings per common share are adjusted for the assumed exercise of dilutive stock options and for restricted stock which are both computed using the treasury stock method.
Stock Based Compensation	Stock Based Compensation: Share-based compensation includes the restricted stock awards expected to vest based on the grant date fair value. Compensation expense is amortized straight-line over the vesting period including an estimate of forfeitures and is included in salaries and benefits. We present excess tax benefits resulting from the exercise of share-based compensation as financing cash in-flows and as operating cash out-flows in the Consolidated Statements of Cash Flows.
New Pronouncements	New Pronouncements: In May 2014, the Financial Accounting Standards Board (“FASB”) issued Update No. 2014-09—Revenue from Contracts with Customers (Topic 606). This Standard provides guidance on how to recognize 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. For public organizations, the guidance in the update is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The update provides two transition methods to the new guidance: a retrospective approach and a modified retrospective approach. Early application is permitted for annual reporting periods beginning after December 15, 2016. We plan to adopt this standard January 1, 2018, as required. We are awaiting the Joint Transition Resource Group for Revenue Recognition’s (TRG) guidance on principal versus agent (reporting revenue gross versus net) to complete our assessment of the effect of this pronouncement on our consolidated financial statements. We are currently evaluating the transition method and effect this update will have on our consolidated financial statements. In November 2015, the Financial Accounting Standards Board (“FASB”) issued Update No. 2015-17—Income Taxes (Topic 740). This Standard provides guidance on the balance sheet classification of deferred taxes, amending the accounting for income taxes and requiring all deferred tax assets and liabilities to be classified as non-current on the consolidated balance sheet. We are currently evaluating the method of adoption and expect this Standard will have an impact on our consolidated balance sheets as our current deferred tax assets were $8.4 million as of December 31, 2015.
Use of Estimates	Use of Estimates : The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period. Significant estimates include the allowance for doubtful accounts, revenue, the cost of transportation, commission expense and useful lives of equipment. Actual results could differ from those estimates.
Reclassifications	Reclassifications: Certain prior year immaterial amounts have been reclassified in the segment footnote to conform with the current year presentation.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Reconciliation of Earnings Per Share	The following is a reconciliation of our earnings per share (in thousands, except for per share data): Years Ended, December 31, 2015 2014 2013 Net income for basic and diluted earnings per share $ 70,949 $ 51,558 $ 69,110 Weighted average shares outstanding - basic 35,876 36,590 36,829 Dilutive effect of stock options and restricted stock 92 142 153 Weighted average shares outstanding - diluted 35,968 36,732 36,982 Earnings per share - basic $ 1.98 $ 1.41 $ 1.88 Earnings per share - diluted $ 1.97 $ 1.40 $ 1.87

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Summary of Operating Results	The following is a summary of operating results, which includes the results of operations of the Mode segment for the years ended December 31, 2015, 2014 and 2013, and certain other financial data for our business segments (in thousands): Twelve Months Twelve Months Ended December 31, 2015 Ended December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Revenue $ 2,679,318 $ 928,661 $ (82,384 ) $ 3,525,595 $ 2,722,799 $ 931,131 $ (82,804 ) $ 3,571,126 Transportation costs 2,385,197 810,087 (82,384 ) 3,112,900 2,461,144 822,351 (82,804 ) 3,200,691 Gross margin 294,121 118,574 - 412,695 261,655 108,780 - 370,435 Costs and expenses: Salaries and benefits 143,993 14,945 - 158,938 122,097 14,383 - 136,480 Agent fees and commissions 56 68,668 - 68,724 45 61,996 - 62,041 General and administrative 53,023 6,992 - 60,015 51,108 6,906 - 58,014 Depreciation and amortization 6,688 1,300 - 7,988 6,238 1,561 - 7,799 Driver settlements and related costs - - - - 10,343 - - 10,343 Impairment of software - - - - 11,881 - - 11,881 Total costs and expenses 203,760 91,905 - 295,665 201,712 84,846 - 286,558 Operating income $ 90,361 $ 26,669 $ - $ 117,030 59,943 23,934 - 83,877 Capital expenditures $ 79,860 $ 3,182 $ - $ 83,042 $ 118,640 $ 531 $ - $ 119,171 Twelve Months Ended December 31, 2013 Inter- Hub Segment Group Hub Mode Elims Total Revenue $ 2,599,763 $ 823,159 $ (49,024 ) $ 3,373,898 Transportation costs 2,325,512 726,387 (49,024 ) 3,002,875 Gross margin 274,251 96,772 - 371,023 Costs and expenses: Salaries and benefits 120,478 14,863 - 135,341 Agent fees and commissions 1,372 54,417 - 55,789 General and administrative 50,484 6,288 - 56,772 Depreciation and amortization 4,326 2,144 - 6,470 Impairment of trade name 2,904 - - 2,904 Total costs and expenses 179,564 77,712 - 257,276 Operating income $ 94,687 $ 19,060 $ - $ 113,747 Capital expenditures $ 109,412 $ 1,505 $ - $ 110,917
Summary of Revenue by Segment and Business Line	The following tables summarize our revenue by segment and business line (in thousands): Twelve Months Twelve Months Ended December 31, 2015 Ended December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Intermodal $ 1,792,046 $ 483,910 $ (78,688 ) $ 2,197,268 $ 1,815,842 $ 466,859 $ (79,406 ) $ 2,203,295 Truck brokerage 355,402 314,498 (1,908 ) 667,992 338,590 335,587 (946 ) 673,231 Logistics 531,870 130,253 (1,788 ) 660,335 568,367 128,685 (2,452 ) 694,600 Total revenue $ 2,679,318 $ 928,661 $ (82,384 ) $ 3,525,595 $ 2,722,799 $ 931,131 $ (82,804 ) $ 3,571,126 Twelve Months Ended December 31, 2013 Inter- Hub Segment Group Hub Mode Elims Total Intermodal $ 1,818,162 $ 389,186 $ (46,401 ) $ 2,160,947 Truck brokerage 333,027 311,930 (1,453 ) 643,504 Logistics 448,574 122,043 (1,170 ) 569,447 Total revenue $ 2,599,763 $ 823,159 $ (49,024 ) $ 3,373,898
Schedule of Assets	As of December 31, 2015 As of December 31, 2014 Inter- Hub Inter- Hub Segment Group Segment Group Hub Mode Elims Total Hub Mode Elims Total Total assets $ 1,127,042 $ 181,514 $ (7,410 ) $ 1,301,146 $ 1,030,722 $ 189,787 $ (8,382 ) $ 1,212,127 Goodwill 233,205 29,389 - 262,594 233,424 29,389 - 262,813

Goodwill and Other Intangible29

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill	The following table presents the carrying amount of goodwill (in thousands): Hub Group Hub Mode Total Balance at January 1, 2014 $ 233,643 $ 29,389 $ 263,032 Other (219 ) - (219 ) Balance at December 31, 2014 233,424 29,389 262,813 Other (219 ) - (219 ) Balance at December 31, 2015 $ 233,205 $ 29,389 $ 262,594
Components of Other Intangible Assets	The components of the “Other intangible assets” are as follows (in thousands): Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2015: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (3,350 ) $ - $ 1,831 7-15 years Hub Total $ 5,181 $ (3,350 ) $ - $ 1,831 Mode Agency/customer relationships $ 15,362 $ (4,054 ) $ - $ 11,308 18 years Hub Group Total $ 20,543 $ (7,404 ) $ - $ 13,139 Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2014: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (2,909 ) $ - $ 2,272 7-15 years Trade name 2,904 - (2,904 ) - Indefinite Hub Total $ 8,085 $ (2,909 ) $ (2,904 ) $ 2,272 Mode Agency/customer relationships $ 15,362 $ (3,200 ) $ - $ 12,162 18 years Hub Group Total $ 23,447 $ (6,109 ) $ (2,904 ) $ 14,434
Components of Other Intangible Assets	The components of the “Other intangible assets” are as follows (in thousands): Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2015: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (3,350 ) $ - $ 1,831 7-15 years Hub Total $ 5,181 $ (3,350 ) $ - $ 1,831 Mode Agency/customer relationships $ 15,362 $ (4,054 ) $ - $ 11,308 18 years Hub Group Total $ 20,543 $ (7,404 ) $ - $ 13,139 Accumulated Net Gross Accumulated Impairment Carrying As of December 31, 2014: Amount Amortization Loss Value Life Hub Customer relationships $ 5,181 $ (2,909 ) $ - $ 2,272 7-15 years Trade name 2,904 - (2,904 ) - Indefinite Hub Total $ 8,085 $ (2,909 ) $ (2,904 ) $ 2,272 Mode Agency/customer relationships $ 15,362 $ (3,200 ) $ - $ 12,162 18 years Hub Group Total $ 23,447 $ (6,109 ) $ (2,904 ) $ 14,434
Amortization Expense	Amortization expense for the next five years is as follows (in thousands): Hub Group Hub Mode Total 2016 $ 442 $ 853 $ 1,295 2017 442 853 1,295 2018 395 853 1,248 2019 255 853 1,108 2020 255 853 1,108

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Reconciliation of Effective Tax Rate to Federal Statutory Tax Rate	The following is a reconciliation of our effective tax rate to the federal statutory tax rate: Years Ended December 31, 2015 2014 2013 U.S. federal statutory rate 35.0 % 35.0 % 35.0 % State taxes, net of federal benefit 2.4 2.9 3.2 State incentives (0.5 ) (0.8) (0.6 ) State law changes (0.9 ) (0.9) 0.1 Nondeductible expenses 0.4 0.9 0.8 Other - (0.1) 0.1 Net effective rate 36.4 % 37.0 % 38.6 %
Summary of Provision for Income Taxes	The following is a summary of our provision for income taxes (in thousands): Years Ended December 31, 2015 2014 2013 Current Federal $ 21,363 $ 5,939 $ 22,880 State and local 2,900 445 3,817 Foreign 284 249 205 24,547 6,633 26,902 Deferred Federal 16,538 23,600 15,920 State and local (346 ) 191 627 Foreign (106 ) (115 ) (4 ) 16,086 23,676 16,543 Total provision $ 40,633 $ 30,309 $ 43,445
Summary of Deferred Tax Assets and Liabilities	The following is a summary of our deferred tax assets and liabilities (in thousands): December 31, 2015 2014 Reserve for uncollectible accounts receivable $ 1,672 $ 2,101 Accrued compensation 11,436 7,161 Other reserves 3,245 2,036 Current deferred tax assets 16,353 11,298 Accrued compensation 7,012 6,829 Other reserves 659 764 Operating loss carryforwards 1,914 1,387 Less valuation allowance (108 ) (108 ) Non-current deferred tax assets 9,477 8,872 Total deferred tax assets $ 25,830 $ 20,170 Prepaids $ (3,448 ) $ (1,551 ) Other receivables (4,493 ) (4,931 ) Current deferred tax liabilities (7,941 ) (6,482 ) Property and equipment (87,148 ) (67,726 ) Goodwill (82,511 ) (81,647 ) Non-current deferred tax liabilities (169,659 ) (149,373 ) Total deferred tax liabilities $ (177,600 ) $ (155,855 )
Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): Balance at January 1, 2014 $ 459 Additions for tax positions taken in prior years 231 Additions for tax positions related to the current year 587 Reductions as a result of a lapse of the applicable statute of limitations (212 ) Balance at December 31, 2014 $ 1,065 Additions for tax positions taken in prior years 166 Additions for tax positions related to the current year 153 Reductions as a result of a lapse of the applicable statute of limitations (245 ) Balance at December 31, 2015 $ 1,139

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Property and Equipment	Property and equipment consist of the following (in thousands): December 31, 2015 2014 Land $ 9,855 $ 9,855 Building and improvements 35,267 35,212 Leasehold improvements 4,419 4,241 Computer equipment and software 77,887 70,719 Furniture and equipment 13,260 12,931 Transportation equipment 405,322 346,055 546,010 479,013 Less: Accumulated depreciation and amortization (171,163 ) (140,686 ) Property and Equipment, net $ 374,847 $ 338,327

Long-Term Debt and Financing 32

Long-Term Debt and Financing Arrangements (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Schedule of Outstanding Debt	Our outstanding debt is as follows (in thousands): Period Ended December 31, December 31, 2015 2014 Secured Equipment Notes due in December 2020 with monthly principal and interest payments of $0.6 million commencing in January 2016; interest is paid monthly at a fixed annual rate between 2.02% and 2.03% $ 33,066 $ - Secured Equipment Notes due in September 2020 with monthly principal and interest payments of $0.2 million commencing in October 2015; interest is paid monthly at a fixed annual rate of 1.84% 12,214 - Secured Equipment Notes due in July 2020 with monthly principal and interest payments of $0.1 million commencing in July 2015; interest is paid monthly at a fixed annual rate of 2.14% 6,395 - Secured Equipment Notes due in March 2020 with monthly principal and interest payments of $0.04 million commencing in April 2015; interest is paid monthly at a fixed annual rate of 2.14% 1,998 - Secured Equipment Notes due in January 2020 with monthly principal and interest payments of $0.2 million commencing in February 2015; interest is paid monthly at a fixed annual rate between 1.72% and 2.26% 7,533 - Secured Equipment Notes due in December 2019 with monthly principal and interest payments of $0.2 million commencing in January 2015; interest is paid monthly at a fixed annual rate of 2.24% 10,828 13,387 Secured Equipment Notes due in November 2019 with monthly principal and interest payments of $0.5 million commencing in December 2014; interest is paid monthly at a fixed annual rate of 2.05% 22,514 28,429 Secured Equipment Notes due in September 2019 with monthly principal and interest payments of $0.4 million commencing in September 2014; interest is paid monthly at a fixed annual rate of 2.15% 18,170 22,772 Secured Equipment Notes due in February 2019 with monthly principal and interest payments of $0.4 million commencing in January 2014; interest is paid monthly at a fixed annual rate between 1.87% and 1.93% 15,974 21,016 Secured Equipment Notes due in June 2018 with quarterly principal and interest payments of $0.5 million commencing in August 2013; interest is paid quarterly at a fixed annual rate between 1.9% and 2.0% 4,612 6,475 133,304 92,079 Less current portion (32,409 ) (19,619 ) Total long-term debt $ 100,895 $ 72,460
Summary of Aggregate Principal Payments	Aggregate principal payments, in thousands, due subsequent to December 31, 2015, are as follows: 2016 $ 32,409 2017 32,772 2018 32,449 2019 25,766 2020 9,908 $ 133,304

Leases, User Charges and Comm33

Leases, User Charges and Commitments (Tables)	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Future Payments Due	Future Payments Due: Operating Leases and Capital Other Lease Commitments Total 2016 $ 3,182 $ 8,883 $ 12,065 2017 3,173 4,992 8,165 2018 3,173 2,841 6,014 2019 3,173 1,455 4,628 2020 3,182 1,405 4,587 2021 and thereafter 1,845 5,003 6,848 $ 17,728 $ 24,579 $ 42,307 Less: Imputed interest (1,821 ) Net capital lease liability $ 15,907

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Non-Vested Restricted Stock Activity	The following table summarizes the non-vested restricted stock activity for the year ended December 31, 2015: Weighted Average Grant Date Non-vested restricted stock Shares Fair Value Non-vested January 1, 2015 728,670 $ 35.81 Granted 338,531 $ 37.60 Vested (232,466) $ 34.49 Forfeited (138,638) $ 36.33 Non-vested at December 31, 2015 696,097 $ 37.02
Schedule of Restricted Stock Granted	The following table summarizes the restricted stock granted during the respective years: Restricted stock grants 2015 2014 2013 Employees 316,531 273,910 280,900 Outside directors 22,000 20,000 20,000 Total 338,531 293,910 300,900 Weighted average grant date fair value $ 37.60 $ 39.66 $ 34.64 Vesting period 3-5 years 3-5 years 3-5 years

Stock Buy Back Plans (Tables)

Stock Buy Back Plans (Tables)	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Number of Shares Purchased and Maximum Value of Shares That yet be Purchased Under Plan	The following table displays the number of shares purchased during 2015 and the maximum value of shares that may yet be purchased under the plan: Maximum Value of Total Total Number of Shares that May Yet Number of Average Shares Purchased as Be Purchased Under Shares Price Paid Part of Publicly the Plan Purchased Per Share Announced Plan (in 000’s) January 1 to January 31 - $ - - $ 56,977 February 1 to February 28 341,020 $ 39.35 341,020 $ 43,577 March 1 to March 31 - $ - - $ 43,577 April 1 to April 30 - $ - - $ 43,577 May 1 to May 31 - $ - - $ 43,577 June 1 to June 30 - $ - - $ 43,577 July 1 to July 31 114,352 $ 38.58 114,352 $ 39,145 August 1 to August 31 198,923 $ 39.97 198,923 $ 31,194 September 1 to September 30 81,229 $ 37.43 81,229 $ 28,154 October 1 to October 31 - $ - - $ 28,154 November 1 to November 30 - $ - - $ 28,154 December 1 to December 31 - $ - - $ - Total 735,524 $ 39.19 735,524 $ -

Selected Quarterly Financial 36

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Summary of Selected Quarterly Financial Data	The following table sets forth the selected quarterly financial data for each of the quarters in 2015 (in thousands, except per share amounts): Quarter Ended March 31, June 30, September 30, December 31, 2015 2015 2015 2015 Year Ended December 31, 2015: Revenue $ 835,941 $ 899,513 $ 899,869 $ 890,272 Gross margin 89,128 101,729 105,064 116,774 Operating income 18,795 29,476 33,418 35,341 Net income 10,276 18,467 19,832 22,374 Basic earnings per share $ 0.28 $ 0.51 $ 0.55 $ 0.63 Diluted earnings per share $ 0.28 $ 0.51 $ 0.55 $ 0.63 The following table sets forth the selected quarterly financial data for each of the quarters in 2014 (in thousands, except per share amounts): Quarter Ended March 31, June 30, September 30, December 31, 2014 2014 2014 2014 Year Ended December 31, 2014: Revenue $ 848,449 $ 893,930 $ 913,386 $ 915,361 Gross margin 88,744 98,585 93,196 89,910 Operating income 20,496 30,927 7,677 24,777 Net income 12,035 18,676 4,491 16,356 Basic earnings per share $ 0.33 $ 0.51 $ 0.12 $ 0.45 Diluted earnings per share $ 0.33 $ 0.51 $ 0.12 $ 0.45

Description of Business and S37

Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015USD ($)Segment	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Summary Of Significant Accounting Policies [Line Items]
Reporting business segments | Segment	2
Reserve for uncollectible accounts	$ 5,200,000	$ 7,000,000
Goodwill impairment	0	0
Impairment of trade name			$ 2,904,000
State tax net operating losses, valuation allowance	100,000
Current deferred tax assets	$ 8,412,000	$ 4,816,000
Leasehold Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated life, description	The shorter of useful life or lease term.
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	50.00%
Maximum [Member] | Customer Concentration Risk [Member] | Revenue [Member]
Summary Of Significant Accounting Policies [Line Items]
Minimum percentage of revenue accounted for by one customer	10.00%	10.00%	10.00%
Maximum [Member] | Building And Improvement [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated life	40 years
Maximum [Member] | Computer Equipment and Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated life	10 years
Maximum [Member] | Furniture and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated life	10 years
Maximum [Member] | Transportation Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated life	15 years
Maximum [Member] | Software Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets estimated useful life	10 years

Capital Structure - Additional

Capital Structure - Additional Information (Detail) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred stock, shares authorized	2,000,000	2,000,000
Class B Common Stock [Member]
Class of Stock [Line Items]
Common stock, rights to vote	80
Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, rights to vote	one

Reconciliation of Earnings Per

Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net income for basic and diluted earnings per share	$ 22,374	$ 19,832	$ 18,467	$ 10,276	$ 16,356	$ 4,491	$ 18,676	$ 12,035	$ 70,949	$ 51,558	$ 69,110
Weighted average shares outstanding - basic									35,876	36,590	36,829
Dilutive effect of stock options and restricted stock									92	142	153
Weighted average shares outstanding - diluted									35,968	36,732	36,982
Earnings per share - basic	$ 0.63	$ 0.55	$ 0.51	$ 0.28	$ 0.45	$ 0.12	$ 0.51	$ 0.33	$ 1.98	$ 1.41	$ 1.88
Earnings per share - diluted	$ 0.63	$ 0.55	$ 0.51	$ 0.28	$ 0.45	$ 0.12	$ 0.51	$ 0.33	$ 1.97	$ 1.40	$ 1.87

Impairment of Software - Additi

Impairment of Software - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2014USD ($)
Asset Impairment Charges [Abstract]
Software development cost	$ 11,881

Business Segments - Additional

Business Segments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015Segment
Segment Reporting [Abstract]
Reporting business segments	2
Number of railheads	one or more

Summary of Operating Results (D

Summary of Operating Results (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 890,272	$ 899,869	$ 899,513	$ 835,941	$ 915,361	$ 913,386	$ 893,930	$ 848,449	$ 3,525,595	$ 3,571,126	$ 3,373,898
Transportation costs									3,112,900	3,200,691	3,002,875
Gross margin	116,774	105,064	101,729	89,128	89,910	93,196	98,585	88,744	412,695	370,435	371,023
Costs and expenses:
Salaries and benefits									158,938	136,480	135,341
Agent fees and commissions									68,724	62,041	55,789
General and administrative									60,015	58,014	56,772
Depreciation and amortization									7,988	7,799	6,470
Driver settlements and related costs										10,343
Impairment of software										11,881
Total costs and expenses									295,665	286,558	257,276
Impairment of trade name											2,904
Operating income	$ 35,341	$ 33,418	$ 29,476	$ 18,795	$ 24,777	$ 7,677	$ 30,927	$ 20,496	117,030	83,877	113,747
Capital expenditures									83,042	119,171	110,917
Operating Segments [Member] | Hub [Member]
Segment Reporting Information [Line Items]
Revenue									2,679,318	2,722,799	2,599,763
Transportation costs									2,385,197	2,461,144	2,325,512
Gross margin									294,121	261,655	274,251
Costs and expenses:
Salaries and benefits									143,993	122,097	120,478
Agent fees and commissions									56	45	1,372
General and administrative									53,023	51,108	50,484
Depreciation and amortization									6,688	6,238	4,326
Driver settlements and related costs										10,343
Impairment of software										11,881
Total costs and expenses									203,760	201,712	179,564
Impairment of trade name											2,904
Operating income									90,361	59,943	94,687
Capital expenditures									79,860	118,640	109,412
Operating Segments [Member] | Mode [Member]
Segment Reporting Information [Line Items]
Revenue									928,661	931,131	823,159
Transportation costs									810,087	822,351	726,387
Gross margin									118,574	108,780	96,772
Costs and expenses:
Salaries and benefits									14,945	14,383	14,863
Agent fees and commissions									68,668	61,996	54,417
General and administrative									6,992	6,906	6,288
Depreciation and amortization									1,300	1,561	2,144
Total costs and expenses									91,905	84,846	77,712
Operating income									26,669	23,934	19,060
Capital expenditures									3,182	531	1,505
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Revenue									(82,384)	(82,804)	(49,024)
Transportation costs									$ (82,384)	$ (82,804)	$ (49,024)

Schedule of Assets (Detail)

Schedule of Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Total assets	$ 1,301,146	$ 1,212,127
Goodwill	262,594	262,813	$ 263,032
Hub [Member]
Segment Reporting Information [Line Items]
Goodwill	233,205	233,424	233,643
Mode [Member]
Segment Reporting Information [Line Items]
Goodwill	29,389	29,389	$ 29,389
Operating Segments [Member] | Hub [Member]
Segment Reporting Information [Line Items]
Total assets	1,127,042	1,030,722
Goodwill	233,205	233,424
Operating Segments [Member] | Mode [Member]
Segment Reporting Information [Line Items]
Total assets	181,514	189,787
Goodwill	29,389	29,389
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Total assets	$ (7,410)	$ (8,382)

Summary of Revenue by Segment a

Summary of Revenue by Segment and Business Line (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 890,272	$ 899,869	$ 899,513	$ 835,941	$ 915,361	$ 913,386	$ 893,930	$ 848,449	$ 3,525,595	$ 3,571,126	$ 3,373,898
Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue									2,197,268	2,203,295	2,160,947
Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue									667,992	673,231	643,504
Logistics [Member]
Segment Reporting Information [Line Items]
Revenue									660,335	694,600	569,447
Operating Segments [Member] | Hub [Member]
Segment Reporting Information [Line Items]
Revenue									2,679,318	2,722,799	2,599,763
Operating Segments [Member] | Hub [Member] | Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue									1,792,046	1,815,842	1,818,162
Operating Segments [Member] | Hub [Member] | Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue									355,402	338,590	333,027
Operating Segments [Member] | Hub [Member] | Logistics [Member]
Segment Reporting Information [Line Items]
Revenue									531,870	568,367	448,574
Operating Segments [Member] | Mode [Member]
Segment Reporting Information [Line Items]
Revenue									928,661	931,131	823,159
Operating Segments [Member] | Mode [Member] | Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue									483,910	466,859	389,186
Operating Segments [Member] | Mode [Member] | Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue									314,498	335,587	311,930
Operating Segments [Member] | Mode [Member] | Logistics [Member]
Segment Reporting Information [Line Items]
Revenue									130,253	128,685	122,043
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Revenue									(82,384)	(82,804)	(49,024)
Intersegment Elims [Member] | Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue									(78,688)	(79,406)	(46,401)
Intersegment Elims [Member] | Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue									(1,908)	(946)	(1,453)
Intersegment Elims [Member] | Logistics [Member]
Segment Reporting Information [Line Items]
Revenue									$ (1,788)	$ (2,452)	$ (1,170)

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0
Goodwill accumulated impairment loss	0
Impairment of trade name			$ 2,904,000
Intangible assets, Amortization expense	$ 1,300,000	$ 1,300,000	$ 1,400,000
Hub [Member] | Weighted Average [Member]
Intangible Assets [Line Items]
Weighted average life of definite lived intangible assets	4 years 5 months 27 days
Mode [Member] | Weighted Average [Member]
Intangible Assets [Line Items]
Weighted average life of definite lived intangible assets	13 years 3 months

Carrying Amount of Goodwill (De

Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 262,813	$ 263,032
Other	(219)	(219)
Goodwill, Ending Balance	262,594	262,813
Hub [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	233,424	233,643
Other	(219)	(219)
Goodwill, Ending Balance	233,205	233,424
Mode [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	29,389	29,389
Other	0	0
Goodwill, Ending Balance	$ 29,389	$ 29,389

Components of Other Intangible

Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Other Intangible Assets [Line Items]
Intangible Assets, Gross Amount	$ 20,543	$ 23,447
Finite-lived intangible assets, Accumulated Amortization	(7,404)	(6,109)
Indefinite-lived intangible assets, Accumulated Impairment Loss		(2,904)
Intangible Assets, Net Carrying Value	13,139	14,434
Hub [Member]
Other Intangible Assets [Line Items]
Intangible Assets, Gross Amount	5,181	8,085
Finite-lived intangible assets, Accumulated Amortization	(3,350)	(2,909)
Indefinite-lived intangible assets, Accumulated Impairment Loss		(2,904)
Intangible Assets, Net Carrying Value	1,831	2,272
Hub [Member] | Trade Names [Member]
Other Intangible Assets [Line Items]
Indefinite-lived intangible assets, Accumulated Impairment Loss		(2,904)
Indefinite-lived intangible assets, Gross Amount		2,904
Indefinite-lived intangible assets, Net Carrying Value		0
Hub [Member] | Customer Relationships [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	5,181	5,181
Finite-lived intangible assets, Accumulated Amortization	(3,350)	(2,909)
Finite-lived intangible assets, Net Carrying Value	$ 1,831	$ 2,272
Hub [Member] | Customer Relationships [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	7 years	7 years
Hub [Member] | Customer Relationships [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	15 years	15 years
Mode [Member] | Agency/Customer Relationships [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	$ 15,362	$ 15,362
Finite-lived intangible assets, Accumulated Amortization	(4,054)	(3,200)
Finite-lived intangible assets, Net Carrying Value	$ 11,308	$ 12,162
Intangible assets estimated useful life	18 years	18 years

Amortization Expense (Detail)

Amortization Expense (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Finite Lived Intangible Assets [Line Items]
2,016	$ 1,295
2,017	1,295
2,018	1,248
2,019	1,108
2,020	1,108
Hub [Member]
Finite Lived Intangible Assets [Line Items]
2,016	442
2,017	442
2,018	395
2,019	255
2,020	255
Mode [Member]
Finite Lived Intangible Assets [Line Items]
2,016	853
2,017	853
2,018	853
2,019	853
2,020	$ 853

Reconciliation of Effective Tax

Reconciliation of Effective Tax Rate to Federal Statutory Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	2.40%	2.90%	3.20%
State incentives	(0.50%)	(0.80%)	(0.60%)
State law changes	(0.90%)	(0.90%)	0.10%
Nondeductible expenses	0.40%	0.90%	0.80%
Other		(0.10%)	0.10%
Net effective rate	36.40%	37.00%	38.60%

Summary of Provision for Income

Summary of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current
Federal	$ 21,363	$ 5,939	$ 22,880
State and local	2,900	445	3,817
Foreign	284	249	205
Current income tax expense, total	24,547	6,633	26,902
Deferred
Federal	16,538	23,600	15,920
State and local	(346)	191	627
Foreign	(106)	(115)	(4)
Deferred income tax expense, total	16,086	23,676	16,543
Total provision	$ 40,633	$ 30,309	$ 43,445

Summary of Deferred Tax Assets

Summary of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Reserve for uncollectible accounts receivable	$ 1,672	$ 2,101
Accrued compensation	11,436	7,161
Other reserves	3,245	2,036
Current deferred tax assets	16,353	11,298
Accrued compensation	7,012	6,829
Other reserves	659	764
Operating loss carryforwards	1,914	1,387
Less valuation allowance	(108)	(108)
Non-current deferred tax assets	9,477	8,872
Total deferred tax assets	25,830	20,170
Prepaids	(3,448)	(1,551)
Other receivables	(4,493)	(4,931)
Current deferred tax liabilities	(7,941)	(6,482)
Property and equipment	(87,148)	(67,726)
Goodwill	(82,511)	(81,647)
Non-current deferred tax liabilities	(169,659)	(149,373)
Total deferred tax liabilities	$ (177,600)	$ (155,855)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Operating loss carryforwards	$ 1,914,000	$ 1,387,000
Valuation allowance for state tax net operating losses	108,000	108,000
Unrecognized tax benefits	1,139,000	1,065,000	$ 459,000
Potential increase (decrease) in income tax provision	700,000	$ 700,000
Net Interest income related to income tax refunds	$ 2,500
Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2016
Possible reduction in unrecognized tax benefits resulting from audit settlements	$ 300,000
Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2035
Possible increase in unrecognized tax benefits resulting from audit settlements	$ 300,000

Unrecognized Tax Benefits (Deta

Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Beginning Balance	$ 1,065	$ 459
Additions for tax positions taken in prior years	166	231
Additions for tax positions related to the current year	153	587
Reductions as a result of a lapse of the applicable statute of limitations	(245)	(212)
Ending Balance	$ 1,139	$ 1,065

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Restricted investments	$ 21.1	$ 21.9

Property and Equipment (Detail)

Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 546,010	$ 479,013
Less: Accumulated depreciation and amortization	(171,163)	(140,686)
Property and Equipment, net	374,847	338,327
Land [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	9,855	9,855
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	35,267	35,212
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	4,419	4,241
Computer Equipment And Software [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	77,887	70,719
Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	13,260	12,931
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 405,322	$ 346,055

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 546,010	$ 479,013
Equipment, capital lease obligation				$ 26,400
Equipment, capital lease obligation, net	14,700	17,400
Depreciation and amortization expense related to property and equipment	35,900	28,300	$ 20,200
Amortization expense under capital lease obligation	2,600	2,600	$ 2,600
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 405,322	$ 346,055

Long-Term Debt and Financing 57

Long-Term Debt and Financing Arrangements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2011Chassis
Line Of Credit Facility [Line Items]
Maximum unsecured borrowing capacity			$ 50,000,000
Line of credit, expiration date		Dec. 31, 2018
Number of chassis leased | Chassis				3,126
Chassis, lease agreement period (years)				10 years
Capital lease interest paid	$ 700,000	$ 800,000	$ 900,000
Standby Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Outstanding letters of credit	$ 8,200,000
Letters of credit expiration, years	2,016
Revolving Line of Credit Facility [Member] | Bank Revolving Line of Credit [Member]
Line Of Credit Facility [Line Items]
Unused and available borrowings under bank revolving line of credit	$ 41,800,000	$ 43,900,000
Minimum [Member]
Line Of Credit Facility [Line Items]
Commitment fee charged on the unused line of credit			0.10%
Interest coverage ratio			2.00%
Maximum [Member]
Line Of Credit Facility [Line Items]
Commitment fee charged on the unused line of credit			0.25%
Total leverage ratio			3.00%
LIBOR rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Interest rate under the Credit Agreement			1.00%
LIBOR rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Interest rate under the Credit Agreement			1.75%
Prime Rate [Member]
Line Of Credit Facility [Line Items]
Interest rate under the Credit Agreement			0.75%

Schedule of Outstanding Debt (D

Schedule of Outstanding Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Secured long-term debt	$ 133,304	$ 92,079
Less current portion	(32,409)	(19,619)
Total long-term debt	100,895	72,460
Secured Equipment Notes due in December 2020 [Member]
Debt Instrument [Line Items]
Equipment note	33,066
Secured Equipment Notes due in September 2020 [Member]
Debt Instrument [Line Items]
Equipment note	12,214
Secured Equipment Notes due in July 2020 [Member]
Debt Instrument [Line Items]
Equipment note	6,395
Secured Equipment Notes due in March 2020 [Member]
Debt Instrument [Line Items]
Equipment note	1,998
Secured Equipment Notes due in January 2020 [Member]
Debt Instrument [Line Items]
Equipment note	7,533
Secured Equipment Notes due in December 2019 [Member]
Debt Instrument [Line Items]
Equipment note	10,828	13,387
Secured Equipment Notes due in November 2019 [Member]
Debt Instrument [Line Items]
Equipment note	22,514	28,429
Secured Equipment Notes due in September 2019 [Member]
Debt Instrument [Line Items]
Equipment note	18,170	22,772
Secured Equipment Notes due in February 2019 [Member]
Debt Instrument [Line Items]
Equipment note	15,974	21,016
Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Equipment note	$ 4,612	$ 6,475

Schedule of Outstanding Debt (P

Schedule of Outstanding Debt (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Secured Equipment Notes due in December 2020 [Member]
Debt Instrument [Line Items]
Equipment notes due	Dec. 31, 2020
Monthly payments	$ 600
Equipment notes, date of first required payment	Jan. 31, 2016
Fixed rate, minimum	2.02%
Fixed rate, maximum	2.03%
Secured Equipment Notes due in September 2020 [Member]
Debt Instrument [Line Items]
Equipment notes due	Sep. 30, 2020
Monthly payments	$ 200
Equipment notes, date of first required payment	Oct. 31, 2015
Payment Frequency	Monthly
Interest rate secured debt	1.84%
Secured Equipment Notes due in July 2020 [Member]
Debt Instrument [Line Items]
Equipment notes due	Jul. 31, 2020
Monthly payments	$ 100
Equipment notes, date of first required payment	Jul. 31, 2015
Payment Frequency	Monthly
Interest rate secured debt	2.14%
Secured Equipment Notes due in March 2020 [Member]
Debt Instrument [Line Items]
Equipment notes due	Mar. 31, 2020
Monthly payments	$ 40
Equipment notes, date of first required payment	Apr. 30, 2015
Payment Frequency	Monthly
Interest rate secured debt	2.14%
Secured Equipment Notes due in January 2020 [Member]
Debt Instrument [Line Items]
Equipment notes due	Jan. 31, 2020
Monthly payments	$ 200
Equipment notes, date of first required payment	Feb. 28, 2015
Fixed rate, minimum	1.72%
Fixed rate, maximum	2.26%
Payment Frequency	Monthly
Secured Equipment Notes due in December 2019 [Member]
Debt Instrument [Line Items]
Equipment notes due	Dec. 31, 2019	Dec. 31, 2019
Monthly payments	$ 200	$ 200
Equipment notes, date of first required payment	Jan. 31, 2015	Jan. 31, 2015
Payment Frequency	Monthly
Interest rate secured debt	2.24%	2.24%
Secured Equipment Notes due in November 2019 [Member]
Debt Instrument [Line Items]
Equipment notes due	Nov. 30, 2019	Nov. 30, 2019
Monthly payments	$ 500	$ 500
Equipment notes, date of first required payment	Dec. 31, 2014	Dec. 31, 2014
Payment Frequency	Monthly
Interest rate secured debt	2.05%	2.05%
Secured Equipment Notes due in September 2019 [Member]
Debt Instrument [Line Items]
Equipment notes due	Sep. 30, 2019	Sep. 30, 2019
Monthly payments	$ 400	$ 400
Equipment notes, date of first required payment	Sep. 30, 2014	Sep. 30, 2014
Payment Frequency	Monthly
Interest rate secured debt	2.15%	2.15%
Secured Equipment Notes due in February 2019 [Member]
Debt Instrument [Line Items]
Equipment notes due	Feb. 28, 2019	Feb. 28, 2019
Monthly payments	$ 400	$ 400
Equipment notes, date of first required payment	Jan. 31, 2014	Jan. 31, 2014
Fixed rate, minimum	1.87%	1.87%
Fixed rate, maximum	1.93%	1.93%
Payment Frequency	Monthly
Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Equipment notes due	Jun. 30, 2018	Jun. 30, 2018
Monthly payments	$ 500	$ 500
Equipment notes, date of first required payment	Aug. 31, 2013	Aug. 31, 2013
Fixed rate, minimum	1.90%	1.90%
Fixed rate, maximum	2.00%	2.00%
Payment Frequency	Quarterly

Summary of Aggregate Principal

Summary of Aggregate Principal Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
2,016	$ 32,409
2,017	32,772
2,018	32,449
2,019	25,766
2,020	9,908
Secured long-term debt	$ 133,304	$ 92,079

Leases, User Charges and Comm61

Leases, User Charges and Commitments - Future Payments Due (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Leases [Abstract]
Future Payments Due, Capital Lease, 2016	$ 3,182
Future Payments Due, Capital Lease, 2017	3,173
Future Payments Due, Capital Lease, 2018	3,173
Future Payments Due, Capital Lease, 2019	3,173
Future Payments Due, Capital Lease, 2020	3,182
Future Payments Due, Capital Lease, 2021 and thereafter	1,845
Future Payments Due, Capital Lease, Total	17,728
Less: Imputed interest	(1,821)
Net capital lease liability	15,907
Future Payments Due, Operating Leases and Other Commitments, 2016	8,883
Future Payments Due, Operating Leases and Other Commitments, 2017	4,992
Future Payments Due, Operating Leases and Other Commitments, 2018	2,841
Future Payments Due, Operating Leases and Other Commitments, 2019	1,455
Future Payments Due, Operating Leases and Other Commitments, 2020	1,405
Future Payments Due, Operating Leases and Other Commitments, 2021 and thereafter	5,003
Future Payments Due, Operating Leases and Other Commitments, Total	24,579
Future Payments Due, Total Leases, 2016	12,065
Future Payments Due, Total Leases, 2017	8,165
Future Payments Due, Total Leases, 2018	6,014
Future Payments Due, Total Leases, 2019	4,628
Future Payments Due, Total Leases, 2020	4,587
Future Payments Due, Total Leases, 2021 and thereafter	6,848
Future Payments Due, Leases, Total	$ 42,307

Leases, User Charges and Comm62

Leases, User Charges and Commitments - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)Container	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Lease and Rental Expense [Line Items]
Rental expense		$ 8,000,000	$ 8,100,000	$ 10,100,000
Rail transportation charges		74,300,000	67,800,000	69,100,000
Minimum commitments on rail owned chassis and containers				0
Purchase contract units, containers | Container	1,000
Cost of purchasing containers	$ 9,000,000
Transportation Costs [Member]
Lease and Rental Expense [Line Items]
Rental expense		$ 11,900,000	$ 13,100,000	$ 10,200,000

Guarantees - Additional Informa

Guarantees - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Guarantees [Abstract]
Expiration dates of guarantees	2,020
Potential maximum exposure under these lease guarantees	$ 10.3	$ 27.2
Liability representing fair value for estimated defaults of guarantees, based on discounted cash-flow analysis	$ 0.1	$ 0.3

Stock-Based Compensation Plan64

Stock-Based Compensation Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2007	Dec. 31, 2003	Dec. 31, 2002	Dec. 31, 1999	Dec. 31, 1997	Dec. 31, 1996
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted since 2003		0
Stock options outstanding		0
Shares available for future grant		526,747
Compensation expense related to share-based compensation plans		$ 7,833	$ 8,258	$ 7,667
Compensation expense related to share-based compensation plans, net of tax		5,000	5,200	4,600
Total intrinsic value of options exercised		0	0	600
Proceeds from stock options exercised		0	0	41
Tax benefit from stock options exercised		$ 0	0	200
Unrecognized compensation cost weighted average period recognized (years)		2 years 11 months 9 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted shares vested		$ 8,700	$ 9,400	$ 7,500
Unrecognized compensation cost related to non-vested share-based compensation		$ 19,300
Restricted stock grants		338,531	293,910	300,900
Restricted stock grants, Weighted average grant date fair value		$ 37.60	$ 39.66	$ 34.64
Restricted Stock [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants, Weighted average grant date fair value	$ 32.95
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		3 years
Minimum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		3 years	3 years	3 years
Minimum [Member] | Restricted Stock [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		5 years
Maximum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		5 years	5 years	5 years
Maximum [Member] | Restricted Stock [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	5 years
1996 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved under long-term incentive plan										1,800,000
1997 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved under long-term incentive plan									600,000
1999 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved under long-term incentive plan								2,400,000
Two Thousand Two Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved under long-term incentive plan							2,400,000
Stock reserved under long-term incentive plan, number of additional shares distributed					1,000,000	2,000,000
Employees [Member] | Restricted Stock [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants	339,852
Outside Directors [Member] | Restricted Stock [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants	22,000

Stock-Based Compensation Plan65

Stock-Based Compensation Plans - Schedule of Non-Vested Restricted Stock Activity (Detail) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value Non-vested, Beginning balance	$ 35.81
Weighted average grant date fair value, Granted	37.60	$ 39.66	$ 34.64
Weighted average grant date fair value, Vested	34.49
Weighted average grant date fair value, Forfeited	36.33
Weighted average grant date fair value Non-vested, Ending balance	$ 37.02	$ 35.81
Shares Non-vested, Beginning balance	728,670
Shares, Granted	338,531	293,910	300,900
Shares, Vested	(232,466)
Shares, Forfeited	(138,638)
Shares Non-vested, Ending balance	696,097	728,670

Stock-Based Compensation Plan66

Stock-Based Compensation Plans - Restricted Stock Granted (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	5 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants	338,531	293,910	300,900
Restricted stock grants, Weighted average grant date fair value	$ 37.60	$ 39.66	$ 34.64
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years	3 years	3 years
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	5 years	5 years	5 years
Restricted Stock [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants	316,531	273,910	280,900
Restricted Stock [Member] | Outside Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants	22,000	20,000	20,000

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Expenses related to employer contributions	$ 1.9	$ 1.9	$ 1.8
Expenses related to deferred compensation plan	0.3	0.3	$ 0.4
Deferred compensation liability	$ 21.3	$ 22.4
Nonqualified Deferred Compensation Plan [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Percent match by employer on the first 6% of employee compensation	50.00%
Maximum percent of compensation employer will match	3.00%

Legal Matters - Additional Info

Legal Matters - Additional Information (Detail) - Robles Lawsuits [Member]	Aug. 05, 2015PlaintiffEmployee	May. 31, 2015Plaintiff	Dec. 31, 2015
Loss Contingencies [Line Items]
Percentage of California drivers who accepted settlement offers			93.00%
Number of plaintiffs		2
Number of plaintiffs against hub group trucking	63
Number of employees filed lawsuit | Employee	5
Number of claims accepted settlement offers	58

Stock Buy Back Plans - Addition

Stock Buy Back Plans - Additional Information (Detail) - USD ($)	1 Months Ended				12 Months Ended
	Sep. 30, 2015	Aug. 31, 2015	Jul. 31, 2015	Feb. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 22, 2014
Equity Class Of Treasury Stock [Line Items]
Purchase of treasury shares (in shares)	81,229	198,923	114,352	341,020	735,524
Purchase of treasury shares					$ 28,823,000	$ 18,024,000	$ 13,791,000
Class A Common Stock [Member]
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, authorized amount								$ 75,000,000
Purchase of treasury shares (in shares)					735,524	501,271
Class A Common Stock [Member] | Employee Restricted Stock Plan [Member]
Equity Class Of Treasury Stock [Line Items]
Stock tendered for payments of withholding taxes (in shares)					77,732	80,772
Purchase of treasury shares					$ 2,900,000	$ 3,200,000

Stock Buy Back Plans - Number o

Stock Buy Back Plans - Number of Shares Purchased and Maximum Value of Shares That yet be Purchased Under Plan (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended
	Sep. 30, 2015	Aug. 31, 2015	Jul. 31, 2015	Feb. 28, 2015	Dec. 31, 2015	Nov. 30, 2015	Oct. 31, 2015	Jun. 30, 2015	May. 31, 2015	Apr. 30, 2015	Mar. 31, 2015	Jan. 31, 2015
Equity [Abstract]
Total Number of Shares Purchased	81,229	198,923	114,352	341,020	735,524
Average Price Paid Per Share	$ 37.43	$ 39.97	$ 38.58	$ 39.35	$ 39.19
Total Number of Shares Purchased as Part of Publicly Announced Plan	81,229	198,923	114,352	341,020	735,524
Maximum Value of Shares that May Yet Be Purchased Under the Plan	$ 28,154	$ 31,194	$ 39,145	$ 43,577		$ 28,154	$ 28,154	$ 43,577	$ 43,577	$ 43,577	$ 43,577	$ 56,977

Selected Quarterly Financial 71

Selected Quarterly Financial Data (Unaudited) - Summary of Selected Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 890,272	$ 899,869	$ 899,513	$ 835,941	$ 915,361	$ 913,386	$ 893,930	$ 848,449	$ 3,525,595	$ 3,571,126	$ 3,373,898
Gross margin	116,774	105,064	101,729	89,128	89,910	93,196	98,585	88,744	412,695	370,435	371,023
Operating income	35,341	33,418	29,476	18,795	24,777	7,677	30,927	20,496	117,030	83,877	113,747
Net income	$ 22,374	$ 19,832	$ 18,467	$ 10,276	$ 16,356	$ 4,491	$ 18,676	$ 12,035	$ 70,949	$ 51,558	$ 69,110
Basic earnings per share	$ 0.63	$ 0.55	$ 0.51	$ 0.28	$ 0.45	$ 0.12	$ 0.51	$ 0.33	$ 1.98	$ 1.41	$ 1.88
Diluted earnings per share	$ 0.63	$ 0.55	$ 0.51	$ 0.28	$ 0.45	$ 0.12	$ 0.51	$ 0.33	$ 1.97	$ 1.40	$ 1.87

Subsequent Event - Additional I

Subsequent Event - Additional Information (Detail) - USD ($)	Feb. 23, 2016	Feb. 02, 2016	Sep. 30, 2015	Aug. 31, 2015	Jul. 31, 2015	Feb. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 22, 2014
Subsequent Event [Line Items]
Purchase of treasury shares (in shares)			81,229	198,923	114,352	341,020	735,524
Purchase of treasury shares							$ 28,823,000	$ 18,024,000	$ 13,791,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase of treasury shares (in shares)	916,773
Purchase of treasury shares	$ 31,100,000
Class A Common Stock [Member]
Subsequent Event [Line Items]
Stock repurchase program, authorized amount										$ 75,000,000
Purchase of treasury shares (in shares)							735,524	501,271
Class A Common Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Stock repurchase program expiration date		Dec. 31, 2016
Class A Common Stock [Member] | Subsequent Event [Member] | Maximum [Member]
Subsequent Event [Line Items]
Stock repurchase program, authorized amount		$ 100,000,000

Valuation and Qualifying Acco73

Valuation and Qualifying Accounts (Detail) - USD ($)		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Uncollectible Trade Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year		$ 6,990,000	$ 7,446,000	$ 6,689,000
Charged to Costs & Expenses		270,000	129,000	662,000
Charged to Other Accounts	[1]	(2,037,000)	(565,000)	142,000
Deductions	[2]	(8,000)	(20,000)	(47,000)
Balance at End of Year		5,215,000	6,990,000	7,446,000
Deferred tax valuation allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year		108,000	108,000	122,000
Charged to Costs & Expenses		0	0	(14,000)
Balance at End of Year		$ 108,000	$ 108,000	$ 108,000
[1]	Expected customer account adjustments charged to revenue and write-offs, net of recoveries
[2]	Represents bad debt recoveries