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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2017	Jul. 25, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Trading Symbol	HUBG
Entity Registrant Name	Hub Group, Inc.
Entity Central Index Key	0000940942
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Class A Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		33,471,682
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		662,296

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 151,739	$ 127,404
Accounts receivable trade, net	448,916	473,608
Accounts receivable other	2,786	4,331
Prepaid taxes	3,648	294
Prepaid expenses and other current assets	12,165	16,653
TOTAL CURRENT ASSETS	619,254	622,290
Restricted investments	23,285	20,877
Property and equipment, net	440,838	438,594
Other intangibles, net	11,196	11,844
Goodwill, net	262,266	262,376
Other assets	6,931	4,278
TOTAL ASSETS	1,363,770	1,360,259
CURRENT LIABILITIES:
Accounts payable trade	262,529	266,555
Accounts payable other	25,404	21,070
Accrued payroll	20,913	36,223
Accrued other	43,277	46,013
Current portion of capital lease	2,733	2,697
Current portion of long term debt	47,582	45,163
TOTAL CURRENT LIABILITIES	402,438	417,721
Long term debt	106,141	115,529
Non-current liabilities	24,807	23,595
Long term portion of capital lease	9,141	10,576
Deferred taxes	171,417	164,659
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value; 2,000,000 shares authorized; no shares issued or outstanding in 2017 and 2016
Additional paid-in capital	168,443	173,565
Purchase price in excess of predecessor basis, net of tax benefit of $10,306	(15,458)	(15,458)
Retained earnings	755,439	735,563
Accumulated other comprehensive loss	(181)	(273)
Treasury stock; at cost, 7,790,882 shares in 2017 and 8,031,810 shares in 2016	(258,836)	(265,637)
TOTAL STOCKHOLDERS' EQUITY	649,826	628,179
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,363,770	1,360,259
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 (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
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	7,790,882	8,031,810
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	33,433,910	33,192,982
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

UNAUDITED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 924,513	$ 855,557	$ 1,817,961	$ 1,661,416
Transportation costs	823,196	741,067	1,615,059	1,438,539
Gross margin	101,317	114,490	202,902	222,877
Costs and expenses:
Salaries and benefits	45,038	43,602	88,217	87,465
Agent fees and commissions	17,038	18,360	35,031	35,262
General and administrative	20,114	16,083	40,938	32,727
Depreciation and amortization	2,549	2,148	4,961	4,283
Total costs and expenses	84,739	80,193	169,147	159,737
Operating income	16,578	34,297	33,755	63,140
Other income (expense):
Interest expense	(1,032)	(857)	(2,130)	(1,767)
Interest and dividend income	200	120	330	181
Other, net		216	194	1,152
Total other expense	(832)	(521)	(1,606)	(434)
Income before provision for income taxes	15,746	33,776	32,149	62,706
Provision for income taxes	6,204	13,105	12,273	24,069
Net income	9,542	20,671	19,876	38,637
Other comprehensive income:
Foreign currency translation adjustments	28	(54)	92	(53)
Total comprehensive income	$ 9,570	$ 20,617	$ 19,968	$ 38,584
Basic earnings per common share	$ 0.29	$ 0.61	$ 0.60	$ 1.12
Diluted earnings per common share	$ 0.29	$ 0.61	$ 0.60	$ 1.12
Basic weighted average number of shares outstanding	33,220	33,944	33,213	34,541
Diluted weighted average number of shares outstanding	33,262	34,027	33,318	34,575

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net Income	$ 19,876	$ 38,637
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	25,288	21,426
Deferred taxes	7,713	7,777
Compensation expense related to share-based compensation plans	4,972	4,245
Loss (gain) on sale of assets	307	(255)
Excess tax benefits from share based compensation		132
Changes in operating assets and liabilities:
Restricted investments	(2,408)	1,117
Accounts receivable, net	26,240	(12,826)
Prepaid taxes	(3,352)	(2,977)
Prepaid expenses and other current assets	4,493	2,685
Other assets	(2,653)	561
Accounts payable	307	24,740
Accrued expenses	(18,013)	(14,031)
Non-current liabilities	368	1,211
Net cash provided by operating activities	63,138	72,442
Cash flows from investing activities:
Proceeds from sale of equipment	2,356	1,148
Purchases of property and equipment	(29,593)	(25,217)
Net cash used in investing activities	(27,237)	(24,069)
Cash flows from financing activities:
Proceeds from issuance of debt	16,149	13,274
Repayments of long term debt	(23,118)	(16,180)
Stock tendered for payments of withholding taxes	(3,293)	(2,379)
Purchase of treasury stock		(85,000)
Capital lease payments	(1,399)	(1,297)
Excess tax benefits from share-based compensation		(359)
Net cash used in financing activities	(11,661)	(91,941)
Effect of exchange rate changes on cash and cash equivalents	95	(31)
Net increase (decrease) in cash and cash equivalents	24,335	(43,599)
Cash and cash equivalents beginning of the period	127,404	207,749
Cash and cash equivalents end of the period	151,739	164,150
Supplemental disclosures of cash paid for:
Interest	2,176	1,762
Income taxes	$ 10,743	$ 22,399

Interim Financial Statements

6 Months Ended

Jun. 30, 2017

Quarterly Financial Information Disclosure [Abstract]

Interim Financial Statements

NOTE 1.

Interim Financial Statements

Our accompanying unaudited consolidated financial statements of Hub Group, Inc. (“we”, “us” or “our”) have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in annual financial statements have been omitted pursuant to those rules and regulations. However, we believe that the disclosures contained herein are adequate to make the information presented not misleading.

The financial statements reflect, in our opinion, all material adjustments (which include only normal recurring adjustments) necessary to fairly present our financial position as of June 30, 2017 and results of operations for the six months ended June 30, 2017 and 2016.

These unaudited consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2016. Results of operations in interim periods are not necessarily indicative of results to be expected for a full year due partially to seasonality.

Business Segments

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Business Segments

NOTE 2.

Business Segments

We report two distinct business segments. The first segment is Mode, which includes the Mode Transportation, LLC (“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 has Independent Business Owners (“IBOs”) who sell and operate the business throughout North America, as well as sales only agents. Mode LLC also has a company managed operation and corporate offices in Dallas, TX, a temperature protected services division, Temstar, located in Oak Brook, IL and corporate offices in Memphis, TN.

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 and certain other financial data for our business segments (in thousands):

	Three Months									Three Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Revenue	$	705,208	$	243,051	$	(23,746	)	$	924,513	$	648,523	$	231,924	$	(24,890	)	$	855,557
Transportation costs		632,651		214,291		(23,746	)		823,196		565,448		200,509		(24,890	)		741,067
Gross margin		72,557		28,760		-			101,317		83,075		31,415		-			114,490

Costs and expenses:
Salaries and benefits		41,569		3,469		-			45,038		39,787		3,815		-			43,602
Agent fees and commissions		14		17,024		-			17,038		13		18,347		-			18,360
General and administrative		18,331		1,783		-			20,114		14,226		1,857		-			16,083
Depreciation and amortization		2,249		300		-			2,549		1,830		318		-			2,148
Total costs and expenses		62,163		22,576		-			84,739		55,856		24,337		-			80,193

Operating income	$	10,394	$	6,184	$	-		$	16,578	$	27,219	$	7,078	$	-		$	34,297

Capital Expenditures	$	22,937	$	31	$	-		$	22,968	$	20,314	$	10	$	-		$	20,324

The following tables summarize our revenue by segment and business line (in thousands) for the quarter ended June 30:

	Three Months									Three Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Intermodal	$	451,593	$	112,119	$	(12,866	)	$	550,846	$	438,133	$	116,963	$	(22,168	)	$	532,928
Truck brokerage		104,980		82,891		(310	)		187,561		83,140		81,374		(475	)		164,039
Logistics		148,635		48,041		(10,570	)		186,106		127,250		33,587		(2,247	)		158,590
Total revenue	$	705,208	$	243,051	$	(23,746	)	$	924,513	$	648,523	$	231,924	$	(24,890	)	$	855,557

The following is a summary of operating results and certain other financial data for our business segments (in thousands):

	Six Months									Six Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Revenue	$	1,382,340	$	484,925	$	(49,304	)	$	1,817,961	$	1,263,751	$	440,755	$	(43,090	)	$	1,661,416
Transportation costs		1,237,978		426,385		(49,304	)		1,615,059		1,101,522		380,107		(43,090	)		1,438,539
Gross margin		144,362		58,540		-			202,902		162,229		60,648		-			222,877

Costs and expenses:
Salaries and benefits		81,164		7,053		-			88,217		79,883		7,582		-			87,465
Agent fees and commissions		31		35,000		-			35,031		27		35,235		-			35,262
General and administrative		36,810		4,128		-			40,938		28,948		3,779		-			32,727
Depreciation and amortization		4,357		604		-			4,961		3,644		639		-			4,283
Total costs and expenses		122,362		46,785		-			169,147		112,502		47,235		-			159,737

Operating income	$	22,000	$	11,755	$	-		$	33,755	$	49,727	$	13,413	$	-		$	63,140

Capital Expenditures	$	29,562	$	31	$	-		$	29,593	$	24,945	$	272	$	-		$	25,217

	As of June 30, 2017									As of December 31, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Total assets	$	1,201,733	$	169,700	$	(7,663	)	$	1,363,770	$	1,178,110	$	191,374	$	(9,225	)	$	1,360,259
Goodwill		232,877		29,389		-			262,266		232,987		29,389		-			262,376

The following tables summarize our revenue by segment and business line (in thousands) for the six months ended June 30:

	Six Months									Six Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Intermodal	$	876,189	$	234,322	$	(28,103	)	$	1,082,408	$	851,940	$	229,329	$	(40,117	)	$	1,041,152
Truck brokerage		211,644		161,069		(695	)		372,018		164,550		148,722		(502	)		312,770
Logistics		294,507		89,534		(20,506	)		363,535		247,261		62,704		(2,471	)		307,494
Total revenue	$	1,382,340	$	484,925	$	(49,304	)	$	1,817,961	$	1,263,751	$	440,755	$	(43,090	)	$	1,661,416

Earnings Per Share

6 Months Ended

Jun. 30, 2017

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):

	Three Months Ended, June 30,				Six Months Ended, June 30,
	2017		2016		2017		2016

Net income for basic and diluted earnings per share	$	9,542	$	20,671	$	19,876	$	38,637

Weighted average shares outstanding - basic		33,220		33,944		33,213		34,541

Dilutive effect of stock options and restricted stock		42		83		105		34

Weighted average shares outstanding - diluted		33,262		34,027		33,318		34,575

Earnings per share - basic	$	0.29	$	0.61	$	0.60	$	1.12

Earnings per share - diluted	$	0.29	$	0.61	$	0.60	$	1.12

Fair Value Measurement

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurement

NOTE 4.

Fair Value Measurement

The carrying value of cash and cash equivalents, accounts receivable and accounts payable and long term debt approximated fair value as of June 30, 2017 and December 31, 2016 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 June 30, 2017 and December 31, 2016, our cash and temporary investments were with high quality financial institutions in Demand Deposit Accounts (DDAs) and Savings Accounts.

Restricted investments, as of June 30, 2017 of $23.3 million and December 31, 2016 of $20.9 million, consisted of mutual funds which are reported at fair value and are related to the liabilities of our nonqualified deferred compensation plan.

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.

- Definition

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

+ References + Details

Long-Term Debt and Financing Arrangements

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Long-Term Debt and Financing Arrangements

NOTE 5.

Long-Term Debt and Financing Arrangements

We have standby letters of credit that expire at various dates in 2017 and 2018. As of June 30, 2017, our letters of credit were $13.5 million.

Our unused and available borrowings under our variable rate bank revolving line of credit were $36.5 million as of June 30, 2017 and $38.2 million as of December 31, 2016. We were in compliance with our debt covenants as of June 30, 2017.

On July 1, 2017, we entered into a new $350 million Credit Agreement. The Credit Agreement replaces the Restated Credit Agreement dated December 12, 2013. See Note 9 for further discussion.

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.

	Period Ended
	June 30,			December 31,
	2017			2016
	(in thousands)

Secured Equipment Notes due in June 2022 with monthly principal and interest payments between $0.03 million and $0.3 million commencing in July 2017; interest is paid monthly at a fixed annual rate of 2.62%	$	16,149		$	-

Secured Equipment Notes due on various dates in 2021 with monthly principal and interest payments between $0.01 million and $0.3 million commencing on various dates in 2016; interest is paid monthly at a fixed annual rate between 2.04% and 2.96%		53,635			59,836

Secured Equipment Notes due on various dates in 2020 with monthly principal and interest payments between $0.04 million and $0.4 million commencing on various dates in 2015 and 2016; interest is paid monthly at a fixed annual rate between 1.72% and 2.26%		42,333			48,633

Secured Equipment Notes due on various dates in 2019 with monthly principal and interest payments between $0.08 million and $0.4 million commencing on various dates in 2014; interest is paid monthly at a fixed annual rate between 1.87% and 2.24%		40,374			49,464

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%		1,232			2,759
		153,723			160,692

Less current portion		(47,582	)		(45,163	)
Total long-term debt	$	106,141		$	115,529

Commitments and Contingencies

6 Months Ended

Jun. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 6.

Commitments and Contingencies

In November 2016, we committed to acquire 4,000 53’ containers. We expect the total purchase price of these containers to be approximately $40 million. We are working with our container supplier on deferring a portion of this year’s production to next year if market conditions remain soft. As of the date of this report, we have received 1,500 containers. We will be financing the purchase of this equipment with secured fixed rate debt.

Legal Matters

6 Months Ended

Jun. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Legal Matters

NOTE 7.

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 June 30, 2017, 93% of the California drivers have accepted the settlement offers which were paid in 2015 or earlier. In late 2014, Hub Group Trucking decided to convert its model from independent contractors to employee drivers in California. In early 2016, Hub Group Trucking closed its operations in Southern 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 and on July 19, 2016, Hub Group Trucking’s motion to dismiss was granted in part, and denied in part, by the District Court. The motion to dismiss was granted for the claims of all purported class members who have signed settlement agreements and on plaintiffs’ claims based on quantum merit and it was denied with respect to federal preemption and choice of law. On August 11, 2016, Plaintiffs filed a motion to clarify whether the Court’s dismissal of the claims of all purported class members who signed settlement agreements was with or without prejudice and, if the dismissal was with prejudice, Plaintiffs moved the Court to revise and reconsider the order. Plaintiffs’ motion to clarify is fully briefed and the parties are awaiting a decision by the Court.

Adame

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. The court granted Plaintiffs’ motion to remand to the state court in San Bernardino County on April 7, 2016, mooting Defendants’ motions to transfer and dismiss.

On July 11, 2016, Defendants filed several motions in state court, asking the court to dismiss and/or stay the Plaintiffs’ suit for various reasons. During a hearing on October 5, 2016, the judge issued an oral tentative ruling stating that the choice of forum provision was unenforceable. On Defendants’ motion to dismiss the individual defendants, the court allowed for supplemental briefing for additional arguments regarding individual liability under PAGA. The court did not reach a decision regarding the motion to stay pending the outcome in Robles. Plaintiffs filed their supplemental brief on November 9, 2016 to which Defendants responded on December 6, 2016.

On February 17, 2017, with the stipulation of the parties, the Court entered an Order dismissing, without prejudice, all of the individual Defendants and accepting the parties’ agreement that jurisdiction and venue are proper in the San Bernardino Superior Court and that Defendants will not seek to remove the case to federal district court. On April 12, 2017, the Court denied Defendants’ motion to dismiss based on insufficiency of the PAGA letter notice.

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 also 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, which provided 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.

On December 17, 2015, Lubinski filed his brief in support of his appeal of the motion to dismiss, asserting for the first time that the federal court did not have jurisdiction over the case due to a lack of diversity of citizenship. Hub Group Trucking filed its response brief on January 19, 2016, in part arguing that Lubinski had himself alleged diversity of citizenship in his complaint. Lubinski filed his reply brief on February 5, 2016. On April 1, 2016, the Sixth Circuit remanded the case to the district court—without ruling on the merits—for the district court “to consider the argument and admit the evidence necessary to determine the question of federal subject-matter jurisdiction.”

On July 11, 2016, with his federal district court case still pending, Lubinski filed an additional putative class action Complaint, with the same claims, in Illinois state court. On the same day, Hub Group Trucking filed a declaratory judgment complaint in Tennessee state court, seeking a declaration that Lubinski’s claims must be heard in Tennessee (based on the contractual choice-of-forum provision) and that the claims must be dismissed because Tennessee law controls and Lubinski’s claims are preempted by federal law.

On October 26, 2016, Lubinski filed a motion to dismiss for lack of federal subject-matter jurisdiction and a motion for leave to file an amended complaint, attempting to “clarify” the putative class definition and arguing that the Class Action Fairness Act’s exceptions to jurisdiction apply. In early 2017, Plaintiff’s counsel advised Hub Group Trucking that Lubinski would no longer challenge federal jurisdiction. On February 15, 2017, the District Court adopted the parties’ stipulation and found that there is federal subject-matter jurisdiction. On March 22, 2017, the U.S. Court of Appeals for the Sixth Circuit granted Plaintiff’s motion to recall the mandate and reinstate Lubinski’s appeal of the district court’s order dismissing the case. On June 8, 2017, the Sixth Circuit issued an Opinion affirming the District Court’s dismissal of Plantiff’s claims. On June 30, 2017, the Sixth Circuit issued the Mandate in the case, which terminates the 6^th Circuit appeal proceedings.

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.

New Pronouncements

6 Months Ended

Jun. 30, 2017

Accounting Changes And Error Corrections [Abstract]

New Accounting Pronouncements

NOTE 8.

New Accounting Pronouncements

In May 2014, the 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. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The FASB has recently issued several amendments to the standard, including clarification on accounting for principal vs agent and identifying performance obligations.

The guidance permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up transition method). We currently anticipate adopting the standard using the full retrospective method to restate each prior reporting period presented.

Early application is permitted for annual reporting periods beginning after December 15, 2016. We plan to adopt this standard January 1, 2018, as required.

While we are continuing to assess all potential impacts of the standard, other than additional disclosures, we do not anticipate that this standard will have a material impact on our consolidated financial statements. We have identified and analyzed our revenue stream and continue to analyze our current contracts.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which requires lessees to recognize a right-to-use asset and a lease obligation for all leases. Lessees are permitted to make an accounting policy election to not recognize an asset and liability for leases with a term of twelve months or less. The new standard will become effective beginning with the first quarter of 2019. Early adoption of the standard is permitted. We plan to adopt this standard January 1, 2019, as required. We are currently evaluating the impacts the adoption of this accounting guidance will have on the consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification of related amounts within the statement of cash flows. The new standard became effective beginning with the first quarter of 2017. We adopted ASU 2016-09 in the first quarter of 2017 and the adoption did not have a material impact on our consolidated financial statements. We have applied the reclassification of excess tax benefits prospectively and therefore the prior period has not been adjusted.

In 2016, the FASB issued new guidance that requires credit losses on financial assets measured at amortized cost basis to be presented at the net amount expected to be collected, not based on incurred losses. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018 is permitted. We are evaluating the impact of adopting this new accounting guidance on our consolidated financial statements.

In 2016, the FASB issued new guidance which clarifies the classification of certain cash receipts and cash payments in the statement of cash flows, including debt prepayment or extinguishment costs, settlement of contingent consideration arising from a business combination, insurance settlement proceeds, and distributions from certain equity method investees. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Early adoption is permitted. We are evaluating the impact of adopting this new accounting guidance on our consolidated financial statements.

Subsequent Events

6 Months Ended

Jun. 30, 2017

Subsequent Events [Abstract]

Subsequent Events

NOTE 9.

Subsequent Events

On July 1, 2017 (the “Closing Date”), Hub Group Trucking (HGT), a wholly owned subsidiary of Hub Group, Inc., acquired the membership interest of Estenson Logistics, LLC (“Estenson”). As a result of the Estenson Acquisition, HGT acquired substantially all of the assets of Estenson, which include tractors and trailers.

The purchase price for Estenson was approximately $286 million, including contingent consideration related to an earn-out provision included in the Purchase Agreement, which will not exceed $6 million and is based on Estenson’s EBITDA results in 2017 and 2018. We assumed $114 million of Estenson debt, paid $111 million in cash, and borrowed $55 million under our new line of credit to facilitate the acquisition.

Due to limitations on access to Estenson information prior to the Closing Date and the limited time since the Closing Date, the initial accounting for the business combination is incomplete at this time. As a result, we are unable to provide the amounts recognized as of the Closing Date for the major classes of assets acquired, liabilities assumed, pre-acquisition contingencies and goodwill.

We incurred approximately $1.5 million of acquisition costs associated with this transaction prior to the Closing Date that are reflected in general and administrative in the Unaudited Consolidated Statements of Income for the six months ended June 30, 2017.

On July 1, 2017, we entered into a new $350 million Credit Agreement. The Credit Agreement replaces the Restated Credit Agreement dated December 12, 2013.

Borrowings under the Credit Agreement generally bear interest at a variable rate equal to (i) LIBOR plus a specified margin based upon the Borrowers' total net leverage ratio (as defined in the Credit Agreement) (the "Total Net Leverage Ratio"), or (ii) the base rate (which is the highest of (a) the administrative agent's prime rate, (b) the federal funds rate plus 0.50% or (c) the sum of 1% plus one-month LIBOR) plus a specified margin based upon the Total Net Leverage Ratio. The specified margin for Eurodollar loans varies from 100.0 to 200.0 basis points per annum. The specified margin for base rate loans varies from 0.0 to 100.0 basis points per annum. The Borrowers must also pay (1) a commitment fee ranging from 10.0 to 25.0 basis points per annum (based upon the Total Net Leverage Ratio) on the aggregate unused commitments and (2) a letter of credit fee ranging from 100.0 to 200.0 basis points per annum (based upon the Total Net Leverage Ratio) on the undrawn amount of letters of credit.

The Credit Agreement contains various restrictions and covenants, including negative covenants that limit or restrict dividends, indebtedness of subsidiaries, mergers and fundamental changes, asset sales, acquisitions, liens and encumbrances, transactions with affiliates, changes in fiscal year and other matters customarily restricted in such agreements. The Company must maintain a Total Net Leverage Ratio of (a) total funded debt as of such date, minus up to $50,000,000 in unrestricted cash and cash equivalents (each as defined in the Credit Agreement) to (b) consolidated EBITDA (as defined in the credit agreement) of not more than 3.00 to 1.00; provided that as of the close of each of the four fiscal quarters occurring after the consummation of a permitted acquisition (as defined in the Credit Agreement) with an aggregate consideration of $150,000,000 or more, such ratio shall not be more than 3.25 to 1.00. The Company must maintain an interest coverage ratio of consolidated EBITDA to consolidated cash interest expense of not less than 3.00 to 1.00.

We incurred $1.3 million of financing costs related to the Credit Agreement during the third quarter of 2017, which will be capitalized and amortized to interest expense over the term of the agreement.

Business Segments (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Summary of Operating Results

The following is a summary of operating results and certain other financial data for our business segments (in thousands):

	Three Months									Three Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Revenue	$	705,208	$	243,051	$	(23,746	)	$	924,513	$	648,523	$	231,924	$	(24,890	)	$	855,557
Transportation costs		632,651		214,291		(23,746	)		823,196		565,448		200,509		(24,890	)		741,067
Gross margin		72,557		28,760		-			101,317		83,075		31,415		-			114,490

Costs and expenses:
Salaries and benefits		41,569		3,469		-			45,038		39,787		3,815		-			43,602
Agent fees and commissions		14		17,024		-			17,038		13		18,347		-			18,360
General and administrative		18,331		1,783		-			20,114		14,226		1,857		-			16,083
Depreciation and amortization		2,249		300		-			2,549		1,830		318		-			2,148
Total costs and expenses		62,163		22,576		-			84,739		55,856		24,337		-			80,193

Operating income	$	10,394	$	6,184	$	-		$	16,578	$	27,219	$	7,078	$	-		$	34,297

Capital Expenditures	$	22,937	$	31	$	-		$	22,968	$	20,314	$	10	$	-		$	20,324

The following is a summary of operating results and certain other financial data for our business segments (in thousands):

	Six Months									Six Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Revenue	$	1,382,340	$	484,925	$	(49,304	)	$	1,817,961	$	1,263,751	$	440,755	$	(43,090	)	$	1,661,416
Transportation costs		1,237,978		426,385		(49,304	)		1,615,059		1,101,522		380,107		(43,090	)		1,438,539
Gross margin		144,362		58,540		-			202,902		162,229		60,648		-			222,877

Costs and expenses:
Salaries and benefits		81,164		7,053		-			88,217		79,883		7,582		-			87,465
Agent fees and commissions		31		35,000		-			35,031		27		35,235		-			35,262
General and administrative		36,810		4,128		-			40,938		28,948		3,779		-			32,727
Depreciation and amortization		4,357		604		-			4,961		3,644		639		-			4,283
Total costs and expenses		122,362		46,785		-			169,147		112,502		47,235		-			159,737

Operating income	$	22,000	$	11,755	$	-		$	33,755	$	49,727	$	13,413	$	-		$	63,140

Capital Expenditures	$	29,562	$	31	$	-		$	29,593	$	24,945	$	272	$	-		$	25,217

Summary of Revenue by Segment and Business Line

The following tables summarize our revenue by segment and business line (in thousands) for the quarter ended June 30:

	Three Months									Three Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Intermodal	$	451,593	$	112,119	$	(12,866	)	$	550,846	$	438,133	$	116,963	$	(22,168	)	$	532,928
Truck brokerage		104,980		82,891		(310	)		187,561		83,140		81,374		(475	)		164,039
Logistics		148,635		48,041		(10,570	)		186,106		127,250		33,587		(2,247	)		158,590
Total revenue	$	705,208	$	243,051	$	(23,746	)	$	924,513	$	648,523	$	231,924	$	(24,890	)	$	855,557

The following tables summarize our revenue by segment and business line (in thousands) for the six months ended June 30:

	Six Months									Six Months
	Ended June 30, 2017									Ended June 30, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Intermodal	$	876,189	$	234,322	$	(28,103	)	$	1,082,408	$	851,940	$	229,329	$	(40,117	)	$	1,041,152
Truck brokerage		211,644		161,069		(695	)		372,018		164,550		148,722		(502	)		312,770
Logistics		294,507		89,534		(20,506	)		363,535		247,261		62,704		(2,471	)		307,494
Total revenue	$	1,382,340	$	484,925	$	(49,304	)	$	1,817,961	$	1,263,751	$	440,755	$	(43,090	)	$	1,661,416

Schedule of Assets

	As of June 30, 2017									As of December 31, 2016
					Inter-			Hub						Inter-			Hub
					Segment			Group						Segment			Group
	Hub		Mode		Elims			Total		Hub		Mode		Elims			Total
Total assets	$	1,201,733	$	169,700	$	(7,663	)	$	1,363,770	$	1,178,110	$	191,374	$	(9,225	)	$	1,360,259
Goodwill		232,877		29,389		-			262,266		232,987		29,389		-			262,376

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

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):

	Three Months Ended, June 30,				Six Months Ended, June 30,
	2017		2016		2017		2016

Net income for basic and diluted earnings per share	$	9,542	$	20,671	$	19,876	$	38,637

Weighted average shares outstanding - basic		33,220		33,944		33,213		34,541

Dilutive effect of stock options and restricted stock		42		83		105		34

Weighted average shares outstanding - diluted		33,262		34,027		33,318		34,575

Earnings per share - basic	$	0.29	$	0.61	$	0.60	$	1.12

Earnings per share - diluted	$	0.29	$	0.61	$	0.60	$	1.12

Long-Term Debt and Financing Arrangements (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Schedule of Outstanding Debt

	Period Ended
	June 30,			December 31,
	2017			2016
	(in thousands)

Secured Equipment Notes due in June 2022 with monthly principal and interest payments between $0.03 million and $0.3 million commencing in July 2017; interest is paid monthly at a fixed annual rate of 2.62%	$	16,149		$	-

Secured Equipment Notes due on various dates in 2021 with monthly principal and interest payments between $0.01 million and $0.3 million commencing on various dates in 2016; interest is paid monthly at a fixed annual rate between 2.04% and 2.96%		53,635			59,836

Secured Equipment Notes due on various dates in 2020 with monthly principal and interest payments between $0.04 million and $0.4 million commencing on various dates in 2015 and 2016; interest is paid monthly at a fixed annual rate between 1.72% and 2.26%		42,333			48,633

Secured Equipment Notes due on various dates in 2019 with monthly principal and interest payments between $0.08 million and $0.4 million commencing on various dates in 2014; interest is paid monthly at a fixed annual rate between 1.87% and 2.24%		40,374			49,464

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%		1,232			2,759
		153,723			160,692

Less current portion		(47,582	)		(45,163	)
Total long-term debt	$	106,141		$	115,529

Business Segments - Additional Information (Detail)	6 Months Ended
Business Segments - Additional Information (Detail)	Jun. 30, 2017 Segment
Segment Reporting Information [Line Items]
Reporting business segments	2
Number of railheads	one or more
Mode LLC [Member]
Segment Reporting Information [Line Items]
Business acquisition, date	Apr. 01, 2011

Summary of Operating Results (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Revenue	$ 924,513	$ 855,557	$ 1,817,961	$ 1,661,416
Transportation costs	823,196	741,067	1,615,059	1,438,539
Gross margin	101,317	114,490	202,902	222,877
Costs and expenses:
Salaries and benefits	45,038	43,602	88,217	87,465
Agent fees and commissions	17,038	18,360	35,031	35,262
General and administrative	20,114	16,083	40,938	32,727
Depreciation and amortization	2,549	2,148	4,961	4,283
Total costs and expenses	84,739	80,193	169,147	159,737
Operating income	16,578	34,297	33,755	63,140
Capital Expenditures	22,968	20,324	29,593	25,217
Operating Segments [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Revenue	705,208	648,523	1,382,340	1,263,751
Transportation costs	632,651	565,448	1,237,978	1,101,522
Gross margin	72,557	83,075	144,362	162,229
Costs and expenses:
Salaries and benefits	41,569	39,787	81,164	79,883
Agent fees and commissions	14	13	31	27
General and administrative	18,331	14,226	36,810	28,948
Depreciation and amortization	2,249	1,830	4,357	3,644
Total costs and expenses	62,163	55,856	122,362	112,502
Operating income	10,394	27,219	22,000	49,727
Capital Expenditures	22,937	20,314	29,562	24,945
Operating Segments [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Revenue	243,051	231,924	484,925	440,755
Transportation costs	214,291	200,509	426,385	380,107
Gross margin	28,760	31,415	58,540	60,648
Costs and expenses:
Salaries and benefits	3,469	3,815	7,053	7,582
Agent fees and commissions	17,024	18,347	35,000	35,235
General and administrative	1,783	1,857	4,128	3,779
Depreciation and amortization	300	318	604	639
Total costs and expenses	22,576	24,337	46,785	47,235
Operating income	6,184	7,078	11,755	13,413
Capital Expenditures	31	10	31	272
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Revenue	(23,746)	(24,890)	(49,304)	(43,090)
Transportation costs	$ (23,746)	$ (24,890)	$ (49,304)	$ (43,090)

Summary of Revenue by Segment and Business Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Revenue	$ 924,513	$ 855,557	$ 1,817,961	$ 1,661,416
Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue	550,846	532,928	1,082,408	1,041,152
Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue	187,561	164,039	372,018	312,770
Logistics [Member]
Segment Reporting Information [Line Items]
Revenue	186,106	158,590	363,535	307,494
Operating Segments [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Revenue	705,208	648,523	1,382,340	1,263,751
Operating Segments [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Revenue	243,051	231,924	484,925	440,755
Operating Segments [Member] \| Intermodal [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Revenue	451,593	438,133	876,189	851,940
Operating Segments [Member] \| Intermodal [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Revenue	112,119	116,963	234,322	229,329
Operating Segments [Member] \| Truck brokerage [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Revenue	104,980	83,140	211,644	164,550
Operating Segments [Member] \| Truck brokerage [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Revenue	82,891	81,374	161,069	148,722
Operating Segments [Member] \| Logistics [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Revenue	148,635	127,250	294,507	247,261
Operating Segments [Member] \| Logistics [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Revenue	48,041	33,587	89,534	62,704
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Revenue	(23,746)	(24,890)	(49,304)	(43,090)
Intersegment Elims [Member] \| Intermodal [Member]
Segment Reporting Information [Line Items]
Revenue	(12,866)	(22,168)	(28,103)	(40,117)
Intersegment Elims [Member] \| Truck brokerage [Member]
Segment Reporting Information [Line Items]
Revenue	(310)	(475)	(695)	(502)
Intersegment Elims [Member] \| Logistics [Member]
Segment Reporting Information [Line Items]
Revenue	$ (10,570)	$ (2,247)	$ (20,506)	$ (2,471)

Schedule of Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 1,363,770	$ 1,360,259
Goodwill	262,266	262,376
Operating Segments [Member] \| Hub [Member]
Segment Reporting Information [Line Items]
Total assets	1,201,733	1,178,110
Goodwill	232,877	232,987
Operating Segments [Member] \| Mode LLC [Member]
Segment Reporting Information [Line Items]
Total assets	169,700	191,374
Goodwill	29,389	29,389
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Total assets	$ (7,663)	$ (9,225)

Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Net income for basic and diluted earnings per share	$ 9,542	$ 20,671	$ 19,876	$ 38,637
Weighted average shares outstanding - basic	33,220	33,944	33,213	34,541
Dilutive effect of stock options and restricted stock	42	83	105	34
Weighted average shares outstanding - diluted	33,262	34,027	33,318	34,575
Earnings per share - basic	$ 0.29	$ 0.61	$ 0.60	$ 1.12
Earnings per share - diluted	$ 0.29	$ 0.61	$ 0.60	$ 1.12

Fair Value Measurement - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Restricted investments	$ 23.3	$ 20.9

Long-Term Debt and Financing Arrangements - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jul. 01, 2017	Dec. 31, 2016
Subsequent Event [Member] \| Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Amount of credit agreement		$ 350,000,000
Standby Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Letters of credit expiration year	2017
Outstanding letters of credit	$ 13,500,000
Revolving Line of Credit Facility [Member] \| Bank Revolving Line of Credit [Member]
Line Of Credit Facility [Line Items]
Unused and available borrowings under variable rate bank revolving line of credit	$ 36,500,000		$ 38,200,000

Schedule of Outstanding Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Secured long-term debt	$ 153,723	$ 160,692
Less current portion	(47,582)	(45,163)
Total long-term debt	106,141	115,529
Secured Equipment Notes due in June 2022 [Member]
Debt Instrument [Line Items]
Secured long-term debt	16,149
Secured Equipment Notes due in 2019 [Member]
Debt Instrument [Line Items]
Secured long-term debt	40,374	49,464
Secured Equipment Notes due in 2021 [Member]
Debt Instrument [Line Items]
Secured long-term debt	53,635	59,836
Secured Equipment Notes due in 2020 [Member]
Debt Instrument [Line Items]
Secured long-term debt	42,333	48,633
Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 1,232	$ 2,759

Schedule of Outstanding Debt (Parenthetical) (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Secured Equipment Notes due in June 2022 [Member]
Debt Instrument [Line Items]
Equipment notes due	Jun. 30, 2022
Payment Frequency	monthly
Equipment notes, date of first required payment	Jul. 31, 2017
Interest rate secured debt	2.62%
Secured Equipment Notes due in 2021 [Member]
Debt Instrument [Line Items]
Payment Frequency	monthly
Equipment notes due period	2021
Secured Equipment Notes due in 2021 [Member] \| Commencing on 2016 [Member]
Debt Instrument [Line Items]
Equipment notes, date of first required payment	2016
Secured Equipment Notes due in 2020 [Member]
Debt Instrument [Line Items]
Payment Frequency	monthly
Equipment notes due period	2020
Secured Equipment Notes due in 2020 [Member] \| Commencing on 2016 [Member]
Debt Instrument [Line Items]
Equipment notes, date of first required payment	2016
Secured Equipment Notes due in 2020 [Member] \| Commencing on 2015 [Member]
Debt Instrument [Line Items]
Equipment notes, date of first required payment	2015
Secured Equipment Notes due in 2019 [Member]
Debt Instrument [Line Items]
Payment Frequency	monthly
Equipment notes due period	2019
Secured Equipment Notes due in 2019 [Member] \| Commencing on 2014 [Member]
Debt Instrument [Line Items]
Equipment notes, date of first required payment	2014
Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Equipment notes due	Jun. 30, 2018
Payment Frequency	quarterly
Monthly payments	$ 500
Equipment notes, date of first required payment	Aug. 31, 2013
Minimum [Member] \| Secured Equipment Notes due in June 2022 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 30
Minimum [Member] \| Secured Equipment Notes due in 2021 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 10
Interest rate secured debt	2.04%
Minimum [Member] \| Secured Equipment Notes due in 2020 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 40
Interest rate secured debt	1.72%
Minimum [Member] \| Secured Equipment Notes due in 2019 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 80
Interest rate secured debt	1.87%
Minimum [Member] \| Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Interest rate secured debt	1.90%
Maximum [Member] \| Secured Equipment Notes due in June 2022 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 300
Maximum [Member] \| Secured Equipment Notes due in 2021 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 300
Interest rate secured debt	2.96%
Maximum [Member] \| Secured Equipment Notes due in 2020 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 400
Interest rate secured debt	2.26%
Maximum [Member] \| Secured Equipment Notes due in 2019 [Member]
Debt Instrument [Line Items]
Monthly payments	$ 400
Interest rate secured debt	2.24%
Maximum [Member] \| Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Interest rate secured debt	2.00%

Commitments and Contingencies - Additional Information (Detail) $ in Millions	1 Months Ended
	Nov. 30, 2016 USD ($) Container
Commitments And Contingencies Disclosure [Abstract]
Purchase contract units, containers	4,000
Cost of purchasing containers \| $	$ 40
Number of containers received	1,500

Legal Matters - Additional Information (Detail) - Robles Lawsuits [Member]		1 Months Ended	6 Months Ended
	Aug. 05, 2015 Plaintiff Employee	May 31, 2015 Plaintiff	Jun. 30, 2017
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

Subsequent Events - Additional Information (Detail) - USD ($)		3 Months Ended	6 Months Ended
	Jul. 01, 2017	Sep. 30, 2017	Jun. 30, 2017
Credit Agreement [Member]
Subsequent Event [Line Items]
Credit agreement interest rate description			(i) LIBOR plus a specified margin based upon the Borrowers' total net leverage ratio (as defined in the Credit Agreement) (the "Total Net Leverage Ratio"), or (ii) the base rate (which is the highest of (a) the administrative agent's prime rate, (b) the federal funds rate plus 0.50% or (c) the sum of 1% plus one-month LIBOR) plus a specified margin based upon the Total Net Leverage Ratio.
Credit Agreement covenant terms			The Credit Agreement contains various restrictions and covenants, including negative covenants that limit or restrict dividends, indebtedness of subsidiaries, mergers and fundamental changes, asset sales, acquisitions, liens and encumbrances, transactions with affiliates, changes in fiscal year and other matters customarily restricted in such agreements. The Company must maintain a Total Net Leverage Ratio of (a) total funded debt as of such date, minus up to $50,000,000 in unrestricted cash and cash equivalents (each as defined in the Credit Agreement) to (b) consolidated EBITDA (as defined in the credit agreement) of not more than 3.00 to 1.00; provided that as of the close of each of the four fiscal quarters occurring after the consummation of a permitted acquisition (as defined in the Credit Agreement) with an aggregate consideration of $150,000,000 or more, such ratio shall not be more than 3.25 to 1.00. The Company must maintain an interest coverage ratio of consolidated EBITDA to consolidated cash interest expense of not less than 3.00 to 1.00.
Credit Agreement [Member] \| Scenario Forecast [Member]
Subsequent Event [Line Items]
Financing costs related to the credit agreement		$ 1,300,000
Subsequent Event [Member] \| Credit Agreement [Member]
Subsequent Event [Line Items]
Amount of credit agreement	$ 350,000,000
Commitment fee on unused commitments	0.25%
Debt covenant permitted aggregate consideration	$ 150,000,000
Subsequent Event [Member] \| Credit Agreement [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Restricted cash and cash equivalents	$ 50,000,000
Total leverage ratio	3.00%
Total leverage ratio for following four each fiscal quarters	3.25%
Subsequent Event [Member] \| Credit Agreement [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Interest coverage ratio	3.00%
Subsequent Event [Member] \| Credit Agreement [Member] \| Federal Funds Rate [Member]
Subsequent Event [Line Items]
Interest rate under the credit agreement	0.50%
Subsequent Event [Member] \| Credit Agreement [Member] \| LIBOR rate [Member]
Subsequent Event [Line Items]
Interest rate under the credit agreement	1.00%
Description of variable rate basis	one-month LIBOR
Subsequent Event [Member] \| Credit Agreement [Member] \| Eurodollar
Subsequent Event [Line Items]
Interest rate under the credit agreement	2.00%
Subsequent Event [Member] \| Credit Agreement [Member] \| Base Rate
Subsequent Event [Line Items]
Interest rate under the credit agreement	1.00%
Subsequent Event [Member] \| Letter of Credit
Subsequent Event [Line Items]
Commitment fee on unused commitments	2.00%
Estenson Logistics, LLC [Member]
Subsequent Event [Line Items]
Business acquisition, Closing Date			Jul. 01, 2017
Business acquisition costs			$ 1,500,000
Estenson Logistics, LLC [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Business acquisition, purchase price	$ 286,000,000
Business acquisition, debt assumed	114,000,000
Business acquisition, cash paid	111,000,000
Amount borrowed under new line of credit	55,000,000
Contingent consideration related to an earn-out provision	$ 6,000,000