Roadrunner Transportation Systems (RRTS) 10-Q 8 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 07, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Roadrunner Transportation Systems, Inc.	'
Entity Central Index Key	'0001440024	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	37,492,773

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$8,757	$11,908
Accounts receivable, net of allowances of $2,403 and $1,476, respectively	170,792	122,947
Deferred income taxes	2,774	3,800
Prepaid expenses and other current assets	23,525	26,461
Total current assets	205,848	165,116
Property and equipment, net of accumulated depreciation of $29,141 and $20,108, respectively	96,234	68,576
Other assets:	'	'
Goodwill	515,862	442,143
Intangible assets, net	24,607	12,710
Other noncurrent assets	11,690	12,263
Total other assets	552,159	467,116
Total assets	854,241	700,808
Current liabilities:	'	'
Current maturities of long-term debt	9,844	17,000
Accounts payable	68,184	54,887
Accrued expenses and other liabilities	29,908	29,132
Total current liabilities	107,936	101,019
Long-term debt, net of current maturities	195,969	144,500
Other long-term liabilities	62,591	63,210
Total liabilities	366,496	308,729
Common stock $.01 par value; 100,000 shares authorized; 37,480 and 34,371 shares issued and outstanding	375	344
Additional paid-in capital	382,887	325,034
Retained earnings	104,483	66,701
Total stockholders’ investment	487,745	392,079
Total liabilities and stockholders’ investment	$854,241	$700,808

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Accounts receivable, net of allowances	$2,403	$1,476
Property and equipment, net of accumulated depreciation	$29,141	$20,108
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	37,480	34,371
Common stock, shares outstanding	37,480	34,371

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Revenues	$363,156	$279,165	$994,444	$778,284
Operating expenses:	'	'	'	'
Purchased transportation costs	253,158	196,042	687,422	548,947
Personnel and related benefits	39,816	30,331	111,342	86,027
Other operating expenses	41,933	31,883	116,405	84,895
Depreciation and amortization	4,029	2,424	11,230	6,509
Acquisition transaction expenses	561	480	851	688
Total operating expenses	339,497	261,160	927,250	727,066
Operating income	23,659	18,005	67,194	51,218
Interest expense:	'	'	'	'
Interest on long-term debt	2,078	1,943	5,563	5,812
Dividends on preferred stock subject to mandatory redemption	0	0	0	49
Total interest expense	2,078	1,943	5,563	5,861
Income before provision for income taxes	21,581	16,062	61,631	45,357
Provision for income taxes	8,351	6,190	23,849	17,354
Net income available to common stockholders	$13,230	$9,872	$37,782	$28,003
Earnings per share available to common stockholders:	'	'	'	'
Basic	$0.36	$0.32	$1.06	$0.91
Diluted	$0.35	$0.31	$1.01	$0.87
Weighted average common stock outstanding:	'	'	'	'
Basic	36,407	30,859	35,666	30,808
Diluted	38,191	32,260	37,469	32,220

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Net Income	$37,782	$28,003
Cash flows from operating activities:	'	'
Net income	37,782	28,003
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	12,864	6,772
Gain on disposal of buildings and equipment	-473	-502
Stock-based compensation	1,155	493
Provision for bad debts	1,009	811
Excess tax benefit on stock-based compensation	-3,765	0
Deferred tax provision	2,874	1,014
Changes in:	'	'
Accounts receivable	-26,614	-20,504
Prepaid expenses and other assets	5,496	-6,314
Accounts payable	754	2,253
Accrued expenses and other liabilities	-7,082	6,272
Net cash provided by operating activities	24,000	18,298
Cash flows from investing activities:	'	'
Acquisition of business, net of cash acquired	-100,659	-59,468
Capital expenditures	-24,379	-12,026
Proceeds from sale of buildings and equipment	1,263	1,252
Net cash used in investing activities	-123,775	-70,242
Cash flows from financing activities:	'	'
Borrowings under revolving credit facilities	110,827	141,177
Payments under revolving credit facilities	-77,826	-113,782
Long-term debt borrowings	22,000	40,500
Long-term debt payments	-10,688	-11,250
Debt issuance cost	-1,472	-1,374
Payments of contingent earnouts	2,407	0
Proceeds from issuance of common stock, net of issuance costs	52,474	823
Redemption of mandatory redeemable preferred stock	0	-5,000
Excess tax benefit from share-based compensation	3,765	0
Reduction of capital lease obligation	-49	-143
Net cash provided by financing activities	96,624	50,951
Net decrease in cash and cash equivalents	-3,151	-993
Cash and cash equivalents:	'	'
Beginning of period	11,908	3,315
End of period	8,757	2,322
Supplemental cash flow information:	'	'
Cash paid for interest	4,567	6,248
Cash paid for income taxes, net	18,951	9,168
Noncash contingent earnout	7,678	11,733
Capital expenditures incurred but not yet paid	$0	$961

Organization_Nature_of_Busines

Organization, Nature of Business and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization, Nature of Business and Significant Accounting Policies	'
	1. Organization, Nature of Business and Significant Accounting Policies
	Nature of Business
	Roadrunner Transportation Systems, Inc. (the “Company”) is headquartered in Cudahy, Wisconsin and has three operating segments: less-than-truckload (“LTL”), truckload logistics (“TL”), and transportation management solutions (“TMS”). Within its LTL business, the Company operates 40 LTL service centers throughout the United States complemented by relationships with over 200 delivery agents. Within its TL business, the Company operates a network of 28 TL service centers, five freight consolidation and inventory management centers, and 21 company dispatch offices. The TL business is augmented by 79 independent brokerage agents. The Company operates its TMS business from five service centers and nine dispatch offices throughout the United States. From pickup to delivery, the Company leverages relationships with a diverse group of third-party carriers to provide scalable capacity and reliable, customized service to customers in North America. The Company operates primarily in the United States.
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated in consolidation. In the Company's opinion, these financial statements include all adjustments, consisting only of normal recurring adjustments, except for the measurement period adjustment related to purchase accounting discussed in Note 2, necessary for a fair presentation of the operations for the interim periods presented. Interim results are not necessarily indicative of results for a full year.
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
	Segment Reporting
	The Company determines its operating segments based on the information utilized by the chief operating decision maker, the Company’s Chief Executive Officer, to allocate resources and assess performance. Based on this information, the Company has determined that it has three operating segments, which are also its reportable segments: LTL, TL, and TMS.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Acquisitions	'
	2. Acquisitions
	On February 24, 2012, the Company acquired all of the outstanding stock of Capital Transportation Logistics (“CTL”) for the purpose of expanding its current market presence in the TMS segment. Cash consideration paid was $6.2 million. The acquisition was financed with borrowings under the Company’s credit facility discussed in Note 5. The CTL purchase agreement calls for contingent consideration in the form of an earnout capped at $0.8 million. The former owners of CTL are entitled to receive a payment equal to the amount by which CTL’s aggregate operating income, as defined in the purchase agreement, exceeds $1.8 million for the years ending December 31, 2012 and 2013. Approximately $0.7 million has been included in the TMS purchase price allocation related to this earnout.
	On April 19, 2012, the Company acquired all of the outstanding stock of Grundman Holdings, Inc., which wholly owned both D&E Transport, Inc. and D&E Leasing, Inc. (collectively, “D&E”), for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $11.4 million. The acquisition was financed with borrowings under the Company’s credit facility discussed in Note 5. The D&E purchase agreement calls for contingent consideration in the form of an earnout capped at $0.7 million per year. The former owners of D&E are entitled to receive a payment equal to the amount by which D&E’s operating income, as defined in the purchase agreement, exceeds $2.0 million for the years ending December 31, 2012, 2013, and 2014. The annual payment starts at $0.1 million if operating income exceeds $2.0 million and escalates up to $0.7 million if operating income exceeds $5.0 million. Approximately $1.0 million has been included in the TL purchase price allocation related to this earnout.
	On June 4, 2012, the Company acquired all of the outstanding stock of CTW Transport (“CTW”) for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $7.6 million. The acquisition was financed with borrowings under the Company’s credit facility discussed in Note 5. The CTW purchase agreement calls for contingent consideration in the form of an earnout capped at $3.5 million. The former owner of CTW is entitled to receive a payment equal to the amount by which CTW’s operating income before depreciation and amortization, as defined in the purchase agreement, exceeds $2.0 million for the years ending December 31, 2012, 2013, and 2014. Approximately $2.6 million has been included in the TL purchase price allocation related to this earnout.
	On August 1, 2012, the Company acquired all of the operating assets of R&M Transportation and all of the outstanding stock of Sortino Transportation (collectively, “R&M”) for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $24.2 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The R&M purchase agreement calls for contingent consideration in the form of an earnout capped at $5.0 million. The former owners of R&M are entitled to receive a payment equal to the amount by which R&M's operating income before depreciation and amortization, as defined in the purchase agreement, exceeds $1.7 million for the five months ending December 31, 2012 and $4.5 million for the years ending December 31, 2013, 2014, and 2015. Approximately $4.2 million has been included in the TL purchase price allocation related to this earnout.
	On August 10, 2012, the Company acquired all of the outstanding stock of Expedited Freight Systems, Inc. (“EFS”) for the purpose of expanding its current market presence in the LTL segment. Cash consideration paid was $10.0 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The EFS purchase agreement calls for contingent consideration in the form of an earnout capped at $4.0 million. The former owners of EFS are entitled to receive a payment equal to the amount by which EFS's operating income before depreciation and amortization, as defined in the purchase agreement, exceeds $0.9 million for the period from the closing date through December 31, 2012, $2.3 million for the year ending December 31, 2013, $2.5 million for the years ending December 31, 2014 and 2015, and $2.8 million for the year ending December 31, 2016. Approximately $3.1 million has been included in the LTL purchase price allocation related to this earnout.
	On November 5, 2012, the Company acquired all of the outstanding stock of Central Cal Transportation ("Central Cal") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $3.8 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The Central Cal purchase agreement calls for contingent consideration in the form of an earnout capped at $4.0 million. The former owners of Central Cal are entitled to receive a payment equal to $0.8 million if Central Cal's combined operating income before depreciation and amortization, as defined in the purchase agreement, exceeds $1.4 million for the period from the closing date through December 31, 2013 and for the years ending December 31, 2014, 2015, and 2016. The purchase agreement also calls for an additional payment of 75% of the amount that Central Cal's combined operating income before depreciation and amortization exceeds $1.4 million in each of the periods referred to above. Approximately $3.4 million has been included in the TL purchase price allocation related to this earnout.
	On November 12, 2012, the Company acquired all of the outstanding stock of Brandon Carrier Group, Inc. ("A&A") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $24.1 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The A&A purchase agreement calls for contingent consideration in the form of an earnout capped at $2.5 million. The former owners of A&A are entitled to receive a payment equal to the amount by which A&A's operating income before amortization, as defined in the purchase agreement, exceeds $3.0 million for the years ending December 31, 2013, 2014, 2015, and 2016. Approximately $2.2 million has been included in the TL purchase price allocation related to this earnout.
	On December 21, 2012, the Company acquired all of the outstanding stock of Direct Connection Transportation ("DCT") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $1.0 million. The acquisition was financed with cash on-hand. The DCT purchase agreement calls for contingent consideration in the form of an earnout capped at $1.0 million. The former owners of DCT are entitled to receive a payment equal to the amount by which DCT's operating income before amortization, as defined in the purchase agreement, exceeds $0.4 million for the years ending December 31, 2013, 2014, and 2015. Approximately $1.0 million has been included in the TL purchase price allocation related to this earnout.
	On April 30, 2013, the Company acquired all of the outstanding capital stock and the Charleston, South Carolina property of Wando Trucking, Inc. ("Wando Trucking") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $9.0 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5.
	On April 30, 2013, the Company also acquired all of the outstanding stock of Adrian Carriers, Inc. and C.B.A. Container Sales, Ltd. (collectively, "Adrian Carriers") for the purpose of expanding its current market presence in the TMS segment. Cash consideration paid was $14.2 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The Adrian Carriers purchase agreement calls for contingent consideration in the form of an earnout capped at $6.5 million. The former owners of Adrian Carriers are entitled to receive a payment equal to the amount by which Adrian Carrier's operating income before amortization, as defined in the purchase agreement, exceeds $2.3 million for the years ending April 30, 2014, 2015, 2016 and 2017. Approximately $5.3 million has been included in the TMS purchase price allocation related to this earnout.
	On July 25, 2013, the Company acquired all of the outstanding membership interests of Marisol International, LLC ("Marisol") for the purpose of expanding its current market presence in the TMS segment. Cash consideration paid was $66.0 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The Marisol purchase agreement calls for contingent consideration in the form of an earnout capped at $2.5 million. The former owners of Marisol are entitled to receive a payment equal to the amount by which Marisol's operating income before depreciation and amortization, as defined in the purchase agreement, exceeds $7.8 million for the years ending July 31, 2014 and 2015. Approximately $1.9 million has been included in the TMS purchase price allocation related to this earnout.
	On August 15, 2013, the Company acquired certain assets of the Southeast drayage division of Transportation Corporation of America, Inc. ("TA Drayage") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $1.2 million. The acquisition was financed with cash on-hand.
	On September 11, 2013, the Company acquired all of the outstanding membership interests of G.W. Palmer Logistics, LLC ("G.W. Palmer") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $2.5 million. The acquisition was financed with borrowings under the Company's credit facility discussed in Note 5. The G.W. Palmer purchase agreement calls for contingent consideration in the form of an earnout capped at $2.8 million. The former owners of G.W. Palmer are entitled to receive an initial payment, not to exceed $0.7 million, for achieving operating income before amortization in excess of $0.9 million for the period from the closing date through December 31, 2013, as defined in the purchase agreement, and a payment equal to the amount by which G.W. Palmer's operating income before amortization, as defined in the purchase agreement, exceeds $1.0 million for the years ending December 31, 2014, 2015, 2016, and 2017. The purchase price allocation related to the contingent earnout has not been finalized due to the timing of the closing of the acquisition.
	On September 18, 2013, the Company acquired substantially all of the assets of YES Trans, Inc. ("YES Trans") for the purpose of expanding its current market presence in the TL segment. Cash consideration paid was $1.2 million. The acquisition was financed with cash on-hand. The YES Trans purchase agreement calls for contingent consideration in the form of an earnout capped at $1.1 million. The former owners of YES Trans are entitled to receive a payment equal to the amount by which YES Trans' operating income, as defined in the purchase agreement exceeds, $0.2 million for the years ending December 31, 2014, 2015, 2016, and 2017. The purchase price allocation related to the contingent earnout has not been finalized due to the timing of the closing of the acquisition.
	The acquisitions of CTL, D&E, CTW, R&M, EFS, Central Cal, A&A, and DCT (collectively, "2012 acquisitions") are considered individually immaterial, but material in the aggregate. The acquisitions of Wando Trucking, Adrian Carriers, Marisol, TA Drayage, G.W Palmer, and YES Trans (collectively, "2013 acquisitions") are considered individually immaterial, but material in the aggregate. The following table summarizes, in the aggregate, the allocation of the purchase price paid to the fair value of the net assets for the 2012 and 2013 acquisitions (in thousands):
		2013 Acquisitions			2012 Acquisitions
	Accounts receivable	$	22,702		$	15,175
	Other current assets	871			1,240
	Property and equipment	14,399			32,387
	Goodwill	77,041			75,135
	Customer relationship intangible assets	11,681			5,932
	Other noncurrent assets	12			(377		)
	Accounts payable and other liabilities	(26,047		)	(40,777		)
	Total	$	100,659		$	88,715
	The goodwill for the acquisitions, in the aggregate, is a result of acquiring and retaining the existing workforces and expected synergies from integrating the operations into the Company. Purchase accounting is considered final for the 2012 acquisitions of CTL, D&E, CTW, EFS, and R&M, preliminary for the 2012 acquisitions of Central Cal, A&A, and DCT with respect to deferred taxes and goodwill, and preliminary for the 2013 acquisitions as final information was not available as of September 30, 2013. Measurement period adjustments related to certain 2012 acquisitions were recorded prospectively as they were not considered material to the Company's consolidated financial statements as of December 31, 2012. These measurement period adjustments from previously recorded opening balance sheets related primarily to fair value measurement changes in customer relationship intangible assets and changes in acquired deferred tax assets and liabilities.
	From the dates of acquisition through September 30, 2012, the 2012 acquisitions contributed revenues to the Company of $23.1 million for the three months ended September 30, 2012 and $32.2 million for the nine months ended September 30, 2012, and contributed net income to the Company of $2.5 million for the three months ended September 30, 2012 and $4.3 million for the nine months ended September 30, 2012.
	The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2012 includes the results of operations for the 2012 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2011 (in thousands):
		Three Months Ended September 30, 2012			Nine Months Ended September 30, 2012
	Revenues	$	297,048		$	884,413
	Net income	$	9,971		$	29,290
	From the dates of acquisition through September 30, 2013, the 2013 acquisitions contributed revenues to the Company of $32.8 million for the three months ended September 30, 2013 and $40.6 million for the nine months ended September 30, 2013, and contributed net income to the Company of $2.1 million for the three months ended September 30, 2013 and $3.2 million for the nine months ended September 30, 2013. The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2013 and 2012 includes the results of operations for the 2013 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2012 (in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013		2012
	Revenues	$	377,327		$	328,754		$	1,099,439	$	921,033
	Net income	$	13,199		$	10,234		$	37,923	$	28,868
	The supplemental unaudited pro forma financial information above is presented for informational purposes only. It is not necessarily indicative of what the Company's financial position or results of operations actually would have been had the Company completed the acquisitions at the dates indicated, nor is it intended to project the future financial position or operating results of the consolidated company.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	3. Goodwill and Intangible Assets
	Goodwill represents the excess of the purchase price of all acquisitions over the estimated fair value of the net assets acquired. The Company performs an impairment test of goodwill annually as of July 1. Neither the 2012 or 2013 impairment tests resulted in any impairment losses. There is no goodwill impairment for any of the periods presented in the Company's condensed consolidated financial statements.
	The following is a rollforward of goodwill from December 31, 2012 to September 30, 2013 by reportable segment (in thousands):
		LTL			TL			TMS		Total
	Goodwill balance as of December 31, 2012	$	197,456		$	202,547		$	42,140	$	442,143
	Adjustments to goodwill for purchase accounting	(143		)	(3,183		)	4		(3,322		)
	Acquisitions	—			8,248			68,793		77,041
	Goodwill balance as of September 30, 2013	$	197,313		$	207,612		$	110,937	$	515,862
	Intangible assets consist of customer relationships acquired from business acquisitions. Intangible assets as of September 30, 2013 and December 31, 2012 were as follows (in thousands):
		September 30, 2013								December 31, 2012
		Gross			Accumulated			Net Carrying		Gross			Accumulated			Net Carrying
		Carrying			Amortization			Value		Carrying			Amortization			Value
		Amount								Amount
	Customer relationships - TL	$	17,950		$	(4,829	)	$	13,121	$	15,115		$	(3,430	)	$	11,685
	Customer relationships - LTL	1,358			(667		)	691		1,358			(497		)	861
	Customer relationships - TMS	11,352			(557		)	10,795		626			(462		)	164
	Total customer relationships	$	30,660		$	(6,053	)	$	24,607	$	17,099		$	(4,389	)	$	12,710
	Customer relationships intangible assets are amortized over their estimated five to ten years useful lives. Amortization expense was $0.6 million and $0.4 million for the three months ended September 30, 2013 and 2012, respectively, and $1.7 million and $1.2 million for the nine months ended September 30, 2013 and 2012, respectively. Estimated amortization expense for each of the next five years based on intangible assets as of September 30, 2013 is as follows (in thousands):
	Remainder 2013	$	869
	2014	3,576
	2015	3,379
	2016	3,287
	2017	3,166
	2018	2,877
	Thereafter	7,453
	Total	$	24,607

Fair_Value_Measurement

Fair Value Measurement	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair value measurement	'
	4. Fair Value Measurement
	Accounting guidance on fair value measurements for certain financial assets and liabilities requires that assets and liabilities carried at fair value be classified and disclosed in one of the following three categories:
	Level 1 — Quoted market prices in active markets for identical assets or liabilities.
	Level 2 — Observable market-based inputs or unobservable inputs that are corroborated by market data.
	Level 3 — Unobservable inputs reflecting the reporting entity’s own assumptions or external inputs from inactive markets.
	A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement.
	The following table presents information, as of September 30, 2013 and December 31, 2012, about the Company’s financial liabilities. Contingent purchase price related to acquisitions is measured at fair value on a recurring basis, according to the valuation techniques the Company used to determine fair value (in thousands):
		September 30, 2013
		Level 1			Level 2		Level 3			Fair Value
	Contingent purchase price related to acquisitions	$	—		$	—	$	22,429		$	22,429
	Total liabilities at fair value	$	—		$	—	$	22,429		$	22,429
		December 31, 2012
		Level 1			Level 2		Level 3			Fair Value
	Contingent purchase price related to acquisitions	$	—		$	—	$	20,907		$	20,907
	Total liabilities at fair value	$	—		$	—	$	20,907		$	20,907
	In measuring the fair value of the contingent purchase price liability, the Company used an income approach that considers the expected future earnings of the acquired businesses and the resulting contingent payments, discounted at a risk-adjusted rate.
	The table below sets forth a reconciliation of the Company’s beginning and ending Level 3 financial liability balance for the three and nine months ended September 30, 2013 and 2012 and the twelve months ended December 31, 2012 (in thousands):
		Three Months Ended September 30,					Nine Months Ended September 30,						Twelve Months Ended December 31,
		2013			2012		2013			2012			2012
	Balance as of Balance, beginning of period	$	23,698		$	7,210	$	20,907		$	3,015		$	3,015
	Earnouts and adjustments related to acquisitions	1,900			7,371		7,678			11,733			17,733
	Payments of contingent purchase obligations	—			—		(2,407		)	(284		)	(284		)
	Adjustments to contingent purchase obligation	(3,169		)	153		(3,749		)	270			443
	Balance, end of period	$	22,429		$	14,734	$	22,429		$	14,734		$	20,907

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Long-term debt	'
	5. Long-Term Debt
	Long-term debt as of September 30, 2013 and December 31, 2012 consisted of the following (in thousands):
		September 30,			December 31,
		2013			2012
	Senior debt:
	Revolving credit facility	$	33,000		$	—
	Term loan	172,813			161,500
	Total debt	205,813			161,500
	Less: Current maturities	(9,844		)	(17,000		)
	Total long-term debt, net of current maturities	$	195,969		$	144,500
	On August 3, 2012, the Company entered into a third amended and restated credit agreement with U.S. Bank National Association (“U.S. Bank”) and other lenders, which increased the revolving credit facility from $100.0 million to $125.0 million and the term loan from $140.0 million to $170.0 million. On August 9, 2013, the Company entered into a fourth amended and restated credit agreement (the "credit agreement") with U.S. Bank and other lenders, which increased the revolving credit facility to $200.0 million and the term loan to $175.0 million. The credit facility matures on August 9, 2018. Principal on the term loan is due in quarterly installments of $2.2 million per quarter through June 30, 2014. As of September 30, 2014, quarterly principal payments on the term loan increase to $3.3 million through June 30, 2016 and increase to $4.4 million beginning September 30, 2016 through June 30, 2018. Any remaining outstanding balance under the credit agreement is due August 9, 2018. The Company categorizes the borrowings under the credit agreement as Level 2 in the fair value hierarchy as defined in Note 4. The carrying value of the Company's long-term debt approximates fair value as the debt agreement bears interest based on prevailing variable market rates currently available. The credit agreement is collateralized by all assets of the Company and contains certain financial covenants, including a minimum fixed charge coverage ratio and a maximum cash flow leverage ratio. Additionally, the credit agreement contains negative covenants limiting, among other things, additional indebtedness, capital expenditures, transactions with affiliates, additional liens, sales of assets, dividends, investments, advances, prepayments of debt, mergers and acquisitions, and other matters customarily restricted in such agreements. As of and at all times during the three and nine months ended September 30, 2013, the Company was in compliance with all covenants contained in the credit agreement. Borrowings under the credit agreement bear interest at either (a) the Eurocurrency Rate (as defined in the credit agreement), plus an applicable margin in the range of 2.0% to 3.3%, or (b) the Base Rate (as defined in the credit agreement), plus an applicable margin in the range of 1.0% to 2.3%. The revolving credit facility also provides for the issuance of up to $30.0 million in letters of credit. As of September 30, 2013, the Company had outstanding letters of credit totaling $10.8 million. Total availability under the revolving credit facility was $156.2 million as of September 30, 2013. As of September 30, 2013, the average interest rate on the credit agreement was 3.0%.

Stockholders_Investment

Stockholders' Investment	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Stockholders' investment	'
	6. Stockholders’ Investment
	Changes in stockholders’ investment for the three and nine months ended September 30, 2013 and 2012 consisted of the following (in thousands):
		Three Months Ended September 30,					Nine Months Ended September 30,
		2013		2012			2013		2012
	Beginning balance	$	429,973	$	315,524		$	392,079	$	295,953
	Net income	13,230		9,872			37,782		28,003
	Shared-based compensation	451		174			1,155		493
	Issuance of common stock - stock offering	38,150		—			46,653		—
	Issuance of common stock - options and warrants	2,176		1,203			6,311		2,060
	Excess tax benefit on stock-based compensation	3,765		—			3,765		—
	Other Changes	—		(1,501		)	—		(1,237		)
	Ending balance	$	487,745	$	325,272		$	487,745	$	325,272
	In January 2013, the underwriters for the Company's public offering of common stock exercised in full their over-allotment option to purchase an additional 525,000 shares of common stock at a price of $17.25 per share to the public. The sale of the additional shares resulted in additional net proceeds to the Company of approximately $8.5 million after deducting the underwriting discount and estimated expenses.
	In August 2013, the Company issued 1.5 million shares of its common stock at a public offering price of $27.00 per share for an aggregate offering proceeds of $38.4 million, net of $2.3 million of underwriting discounts and commissions and expenses.

Preferred_Stock

Preferred Stock	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Preferred stock	'
	7. Preferred Stock
	Series A Redeemable Preferred Stock
	In March 2007, the Company issued 5,000 shares of non-voting Series A Preferred Stock (“Series A Preferred Stock”), which were mandatorily redeemable by the Company at $1,000 per share, in cash, on November 30, 2012. The Series A Preferred Stock received cash dividends annually on April 30 at an annual rate equal to $40 per share. In March 2012, the Company repurchased the 5,000 shares of Series A Preferred Stock and paid the corresponding dividends through the date of the repurchase.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	8. Earnings Per Share
	Basic earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of common stock outstanding during the period. For the three and nine months ended September 30, 2013 and 2012, diluted earnings per share was calculated by dividing net income available to common stockholders by the weighted average common stock outstanding plus stock equivalents that would arise from the assumed exercise of stock options and conversion of warrants using the treasury stock method. There is no difference, for any of the periods presented, in the amount of net income available to common stockholders used in the computation of basic and diluted earnings per share.
	The following table reconciles basic weighted average stock outstanding to diluted weighted average stock outstanding for the three and nine months ended September 30, 2013 and 2012 (in thousands):
		Three Months Ended September 30,		Nine Months Ended September 30,
		2013	2012	2013	2012
	Basic weighted average stock outstanding	36,407	30,859	35,666	30,808
	Effect of dilutive securities
	Employee stock options	424	446	463	450
	Warrants	1,291	941	1,292	916
	Restricted stock units	69	14	48	46
	Diluted weighted average stock outstanding	38,191	32,260	37,469	32,220
	The Company had additional stock options and warrants outstanding of 308,698 as of September 30, 2012. These shares were not included in the computation of diluted earnings per share because they were not assumed to be exercised under the treasury stock method or were anti-dilutive. As of September 30, 2013, all stock options and warrants were included in the computation of diluted earnings per share.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	9. Income Taxes
	The effective income tax rate was 38.7% for the three months ended September 30, 2013, compared to 38.5% for the three months ended September 30, 2012. For the nine months ended September 30, 2013, the effective income tax rate was 38.7% compared to 38.3% for the nine months ended September 30, 2012. In determining the provision for income taxes, the Company used an estimated annual effective tax rate, which was based on expected annual income, statutory tax rates, and its best estimate of non-deductible and non-taxable items of income and expense. Income tax expense varies from the amount computed by applying the federal corporate income tax rate of 35.0% to income before income taxes primarily due to state income taxes, net of federal income tax effect, and adjustments for permanent differences.

Guarantees_Guarantees

Guarantees Guarantees	9 Months Ended
	Sep. 30, 2013
Guarantees [Abstract]	'
Guarantees	'
	10. Guarantees
	The Company provides a guarantee for a portion of the value of certain independent contractors' ("IC") leased tractors.  The guarantees expire at various dates through 2020.  The potential maximum exposure under these lease guarantees was approximately $7.4 million as of September 30, 2013.  The potential maximum exposure represents the Company’s commitment on remaining lease payments on guaranteed leases as of September 30, 2013.  However, upon an IC default, the Company has the option to purchase the tractor or return the tractor to the leasing company if the residual value is greater than the Company’s guarantee. Alternatively, the Company can contract another IC to assume the lease.  There were no material IC defaults during the three and nine months ended September 30, 2013 and payments made by the Company under the guarantee were de minimis.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and contingencies	'
	11. Commitments and Contingencies
	In the ordinary course of business, the Company is a defendant in several property and other claims. In the aggregate, the Company does not believe any of these claims will have a material impact on its consolidated financial statements. The Company maintains liability insurance coverage for claims in excess of $500,000 per occurrence and cargo coverage for claims in excess of $100,000 per occurrence. The Company believes it has adequate insurance to cover losses in excess of the deductible amount. As of September 30, 2013 and December 31, 2012, the Company had reserves for estimated uninsured losses of $5.7 million and $5.0 million, respectively.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related party transactions	'
	12. Related Party Transactions
	The Company has an advisory agreement with HCI Equity Management L.P. (“HCI”) to pay a transaction fee for each acquisition and an annual advisory fee of $0.1 million. The Company paid an aggregate of $0.1 million to HCI for the advisory fee and travel expenses during both the three months ended September 30, 2013 and 2012 and an aggregate of $0.2 million and $0.1 million for the nine months ended September 30, 2013 and 2012, respectively.

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment reporting	'
	13. Segment Reporting
	The Company determines its operating segments based on the information utilized by the chief operating decision maker, the Company’s Chief Executive Officer, to allocate resources and assess performance. Based on this information, the Company has determined that it has three operating segments, which are also the reportable segments: LTL, TL, and TMS.
	These reportable segments are strategic business units through which the Company offers different services. The Company evaluates the performance of the segments primarily based on their respective revenues and operating income. Accordingly, interest expense and other non-operating items are not reported in segment results. In addition, the Company has disclosed a corporate segment, which is not an operating segment and includes acquisition transaction expenses, corporate salaries, and stock-based compensation expense.
	The following table reflects certain financial data of the Company’s reportable segments for the three and nine months ended September 30, 2013 and 2012 and as of September 30, 2013 and December 31, 2012 (in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
	Revenues:
	LTL	$	144,190		$	132,451		$	423,426		$	381,121
	TL	170,102			124,212			477,878			333,284
	TMS	50,921			23,955			99,331			67,762
	Eliminations	(2,057		)	(1,453		)	(6,191		)	(3,883		)
	Total	363,156			279,165			994,444			778,284
	Operating income:
	LTL	10,907			10,015			31,693			28,919
	TL	10,843			7,321			31,862			19,812
	TMS	4,634			2,746			10,923			7,723
	Corporate	(2,725		)	(2,077		)	(7,284		)	(5,236		)
	Total operating income	23,659			18,005			67,194			51,218
	Interest expense	2,078			1,943			5,563			5,861
	Income before provision for income taxes	$	21,581		$	16,062		$	61,631		$	45,357
	Depreciation and amortization:
	LTL	$	614		$	627		$	2,396		$	1,688
	TL	3,057			1,603			8,071			4,247
	TMS	291			194			643			574
	Corporate	67			—			120			—
	Total	$	4,029		$	2,424		$	11,230		$	6,509
	Capital expenditures:
	LTL	$	2,348		$	1,802		$	5,061		$	5,661
	TL	3,552			3,406			19,136			6,302
	TMS	130			6			182			63
	Corporate	—			—						—
	Total	$	6,030		$	5,214		$	24,379		$	12,026
		September 30, 2013			December 31, 2012
	Assets:
	LTL	$	582,357		$	490,067
	TL	384,008			339,890
	TMS	156,553			61,076
	Eliminations	(268,677		)	(190,225		)
		$	854,241		$	700,808

Organization_Nature_of_Busines1

Organization, Nature of Business and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Nature of Business	'
	Nature of Business
	Roadrunner Transportation Systems, Inc. (the “Company”) is headquartered in Cudahy, Wisconsin and has three operating segments: less-than-truckload (“LTL”), truckload logistics (“TL”), and transportation management solutions (“TMS”). Within its LTL business, the Company operates 40 LTL service centers throughout the United States complemented by relationships with over 200 delivery agents. Within its TL business, the Company operates a network of 28 TL service centers, five freight consolidation and inventory management centers, and 21 company dispatch offices. The TL business is augmented by 79 independent brokerage agents. The Company operates its TMS business from five service centers and nine dispatch offices throughout the United States. From pickup to delivery, the Company leverages relationships with a diverse group of third-party carriers to provide scalable capacity and reliable, customized service to customers in North America. The Company operates primarily in the United States.
Principles of Consolidation	'
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated in consolidation. In the Company's opinion, these financial statements include all adjustments, consisting only of normal recurring adjustments, except for the measurement period adjustment related to purchase accounting discussed in Note 2, necessary for a fair presentation of the operations for the interim periods presented. Interim results are not necessarily indicative of results for a full year.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Segment Reporting	'
	Segment Reporting
	The Company determines its operating segments based on the information utilized by the chief operating decision maker, the Company’s Chief Executive Officer, to allocate resources and assess performance. Based on this information, the Company has determined that it has three operating segments, which are also its reportable segments: LTL, TL, and TMS.

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Schedule of allocated purchase price paid to fair value of acquired net assets for acquisitions	'
		2013 Acquisitions			2012 Acquisitions
	Accounts receivable	$	22,702		$	15,175
	Other current assets	871			1,240
	Property and equipment	14,399			32,387
	Goodwill	77,041			75,135
	Customer relationship intangible assets	11,681			5,932
	Other noncurrent assets	12			(377		)
	Accounts payable and other liabilities	(26,047		)	(40,777		)
	Total	$	100,659		$	88,715
Business Acquisition, Pro Forma Information	'
	The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2012 includes the results of operations for the 2012 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2011 (in thousands):
		Three Months Ended September 30, 2012			Nine Months Ended September 30, 2012
	Revenues	$	297,048		$	884,413
	Net income	$	9,971		$	29,290
	The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2013 and 2012 includes the results of operations for the 2013 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2012 (in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013		2012
	Revenues	$	377,327		$	328,754		$	1,099,439	$	921,033
	Net income	$	13,199		$	10,234		$	37,923	$	28,868

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Rollforward of goodwill by reportable segment	'
		LTL			TL			TMS		Total
	Goodwill balance as of December 31, 2012	$	197,456		$	202,547		$	42,140	$	442,143
	Adjustments to goodwill for purchase accounting	(143		)	(3,183		)	4		(3,322		)
	Acquisitions	—			8,248			68,793		77,041
	Goodwill balance as of September 30, 2013	$	197,313		$	207,612		$	110,937	$	515,862
Intangible assets	'
		September 30, 2013								December 31, 2012
		Gross			Accumulated			Net Carrying		Gross			Accumulated			Net Carrying
		Carrying			Amortization			Value		Carrying			Amortization			Value
		Amount								Amount
	Customer relationships - TL	$	17,950		$	(4,829	)	$	13,121	$	15,115		$	(3,430	)	$	11,685
	Customer relationships - LTL	1,358			(667		)	691		1,358			(497		)	861
	Customer relationships - TMS	11,352			(557		)	10,795		626			(462		)	164
	Total customer relationships	$	30,660		$	(6,053	)	$	24,607	$	17,099		$	(4,389	)	$	12,710
Estimated amortization expense	'
	Remainder 2013	$	869
	2014	3,576
	2015	3,379
	2016	3,287
	2017	3,166
	2018	2,877
	Thereafter	7,453
	Total	$	24,607

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Financial liabilities measured at fair value on a recurring basis	'
		September 30, 2013
		Level 1			Level 2		Level 3			Fair Value
	Contingent purchase price related to acquisitions	$	—		$	—	$	22,429		$	22,429
	Total liabilities at fair value	$	—		$	—	$	22,429		$	22,429
		December 31, 2012
		Level 1			Level 2		Level 3			Fair Value
	Contingent purchase price related to acquisitions	$	—		$	—	$	20,907		$	20,907
	Total liabilities at fair value	$	—		$	—	$	20,907		$	20,907
Schedule of reconciliation of beginning and ending Level 3 financial liability balance	'
	The table below sets forth a reconciliation of the Company’s beginning and ending Level 3 financial liability balance for the three and nine months ended September 30, 2013 and 2012 and the twelve months ended December 31, 2012 (in thousands):
		Three Months Ended September 30,					Nine Months Ended September 30,						Twelve Months Ended December 31,
		2013			2012		2013			2012			2012
	Balance as of Balance, beginning of period	$	23,698		$	7,210	$	20,907		$	3,015		$	3,015
	Earnouts and adjustments related to acquisitions	1,900			7,371		7,678			11,733			17,733
	Payments of contingent purchase obligations	—			—		(2,407		)	(284		)	(284		)
	Adjustments to contingent purchase obligation	(3,169		)	153		(3,749		)	270			443
	Balance, end of period	$	22,429		$	14,734	$	22,429		$	14,734		$	20,907

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Long-term debt	'
		September 30,			December 31,
		2013			2012
	Senior debt:
	Revolving credit facility	$	33,000		$	—
	Term loan	172,813			161,500
	Total debt	205,813			161,500
	Less: Current maturities	(9,844		)	(17,000		)
	Total long-term debt, net of current maturities	$	195,969		$	144,500

Stockholders_Investment_Tables

Stockholders' Investment (Tables)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Schedule of changes in stockholders' investment	'
		Three Months Ended September 30,					Nine Months Ended September 30,
		2013		2012			2013		2012
	Beginning balance	$	429,973	$	315,524		$	392,079	$	295,953
	Net income	13,230		9,872			37,782		28,003
	Shared-based compensation	451		174			1,155		493
	Issuance of common stock - stock offering	38,150		—			46,653		—
	Issuance of common stock - options and warrants	2,176		1,203			6,311		2,060
	Excess tax benefit on stock-based compensation	3,765		—			3,765		—
	Other Changes	—		(1,501		)	—		(1,237		)
	Ending balance	$	487,745	$	325,272		$	487,745	$	325,272

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Reconciling basic weighted average stock outstanding to diluted weighted average stock outstanding	'
		Three Months Ended September 30,		Nine Months Ended September 30,
		2013	2012	2013	2012
	Basic weighted average stock outstanding	36,407	30,859	35,666	30,808
	Effect of dilutive securities
	Employee stock options	424	446	463	450
	Warrants	1,291	941	1,292	916
	Restricted stock units	69	14	48	46
	Diluted weighted average stock outstanding	38,191	32,260	37,469	32,220

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Schedule of financial data of reportable segments	'
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
	Revenues:
	LTL	$	144,190		$	132,451		$	423,426		$	381,121
	TL	170,102			124,212			477,878			333,284
	TMS	50,921			23,955			99,331			67,762
	Eliminations	(2,057		)	(1,453		)	(6,191		)	(3,883		)
	Total	363,156			279,165			994,444			778,284
	Operating income:
	LTL	10,907			10,015			31,693			28,919
	TL	10,843			7,321			31,862			19,812
	TMS	4,634			2,746			10,923			7,723
	Corporate	(2,725		)	(2,077		)	(7,284		)	(5,236		)
	Total operating income	23,659			18,005			67,194			51,218
	Interest expense	2,078			1,943			5,563			5,861
	Income before provision for income taxes	$	21,581		$	16,062		$	61,631		$	45,357
	Depreciation and amortization:
	LTL	$	614		$	627		$	2,396		$	1,688
	TL	3,057			1,603			8,071			4,247
	TMS	291			194			643			574
	Corporate	67			—			120			—
	Total	$	4,029		$	2,424		$	11,230		$	6,509
	Capital expenditures:
	LTL	$	2,348		$	1,802		$	5,061		$	5,661
	TL	3,552			3,406			19,136			6,302
	TMS	130			6			182			63
	Corporate	—			—						—
	Total	$	6,030		$	5,214		$	24,379		$	12,026
		September 30, 2013			December 31, 2012
	Assets:
	LTL	$	582,357		$	490,067
	TL	384,008			339,890
	TMS	156,553			61,076
	Eliminations	(268,677		)	(190,225		)
		$	854,241		$	700,808

Organization_Nature_of_Busines2

Organization Nature of Business and Significant Accounting Policies (Details Textual)	9 Months Ended
	Sep. 30, 2013
	Segment
Organization Nature of Business and Significant Accounting Policies (Textual) [Abstract]	'
Number of operating segments	3
LTL [Member]	'
Organization Nature of Business and Significant Accounting Policies (Textual) [Abstract]	'
Number of service centers	40
Number of delivery agents	200
TL [Member]	'
Organization Nature of Business and Significant Accounting Policies (Textual) [Abstract]	'
Number of service centers	28
Number of consolidation facilities	5
Number of dispatch offices	21
Number of independent agents	79
TMS [Member]	'
Organization Nature of Business and Significant Accounting Policies (Textual) [Abstract]	'
Number of service centers	5
Number of dispatch offices	9

Acquisitions_Details

Acquisitions (Details) (USD $)

Sep. 30, 2013

Dec. 31, 2012

Sep. 18, 2013

Sep. 30, 2013

Feb. 24, 2013

Sep. 30, 2013

Apr. 19, 2012

Sep. 30, 2013

Jun. 04, 2012

Sep. 30, 2013

Aug. 01, 2012

Sep. 30, 2013

Aug. 10, 2012

Sep. 30, 2013

Nov. 05, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Apr. 30, 2013

Apr. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

YES Trans [Member]

YES Trans [Member]

CTL [Member]

CTL [Member]

D&E [Member]

D&E [Member]

CTW [Member]

CTW [Member]

R & M [Member]

R & M [Member]

EFS [Member]

EFS [Member]

Central Cal [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

Wando [Member]

Adrian [Member]

Adrian [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Thirteen [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

Two Thousand Twelve [Member]

CTL [Member]

D&E [Member]

CTW [Member]

R & M [Member]

EFS [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

CTL [Member]

D&E [Member]

CTW [Member]

EFS [Member]

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consideration Transferred

'

'

$1,200,000

'

$6,200,000

'

$11,400,000

'

$7,600,000

'

$24,200,000

'

$10,000,000

'

$3,800,000

'

'

'

$9,000,000

$14,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High

2,500,000

'

'

1,100,000

'

800,000

'

'

'

3,500,000

'

5,000,000

'

4,000,000

'

4,000,000

2,500,000

1,000,000

'

'

6,500,000

'

'

'

'

'

'

'

'

'

800,000

'

'

'

'

'

'

'

'

'

Business Combination, Contingent Consideration Arrangements, Basis

'

'

'

'

'

'

'

5,000,000

'

'

'

1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

1,800,000

2,000,000

2,000,000

4,500,000

2,300,000

1,400,000

3,000,000

400,000

'

'

'

1,800,000

2,000,000

2,000,000

900,000

Schedule of allocated purchase price paid to fair value of acquired net assets for acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts receivable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22,702,000

'

22,702,000

'

'

'

'

'

'

'

'

'

'

'

15,175,000

'

'

'

'

Other current assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

871,000

'

871,000

'

'

'

'

'

'

'

'

'

'

'

1,240,000

'

'

'

'

Property and equipment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,399,000

'

14,399,000

'

'

'

'

'

'

'

'

'

'

'

32,387,000

'

'

'

'

Goodwill

515,862,000

442,143,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

77,041,000

'

77,041,000

'

'

'

'

'

'

'

'

'

'

'

75,135,000

'

'

'

'

Customer relationship intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,681,000

'

11,681,000

'

'

'

'

'

'

'

'

'

'

'

5,932,000

'

'

'

'

Other noncurrent assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,000

'

12,000

'

'

'

'

'

'

'

'

'

'

'

-377,000

'

'

'

'

Accounts payable and other liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-26,047,000

'

-26,047,000

'

'

'

'

'

'

'

'

'

'

'

-40,777,000

'

'

'

'

Total

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,659,000

'

100,659,000

'

'

'

'

'

'

'

'

'

'

'

88,715,000

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

377,327,000

328,754,000

1,099,439,000

921,033,000

'

'

'

'

'

'

'

'

297,048,000

884,413,000

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$13,199,000

$10,234,000

$37,923,000

$28,868,000

'

'

'

'

'

'

'

'

$9,971,000

$29,290,000

'

'

'

'

'

Acquisitions_Details_Textual

Acquisitions (Details Textual) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Feb. 24, 2013

Sep. 30, 2013

Apr. 19, 2012

Sep. 30, 2013

Jun. 04, 2012

Sep. 30, 2013

Aug. 01, 2012

Sep. 30, 2013

Aug. 10, 2012

Sep. 30, 2013

Nov. 05, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Apr. 30, 2013

Sep. 30, 2013

Apr. 30, 2013

Sep. 30, 2013

Jul. 25, 2013

Sep. 30, 2013

Aug. 15, 2013

Sep. 30, 2013

Sep. 11, 2013

Sep. 30, 2013

Sep. 18, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Feb. 24, 2012

Apr. 30, 2013

Jul. 25, 2013

Apr. 19, 2012

Jun. 04, 2012

Aug. 01, 2012

Nov. 05, 2012

Nov. 12, 2012

Dec. 21, 2012

Aug. 10, 2012

Sep. 30, 2013

Sep. 30, 2013

CTL [Member]

CTL [Member]

D&E [Member]

D&E [Member]

CTW [Member]

CTW [Member]

R & M [Member]

R & M [Member]

EFS [Member]

EFS [Member]

Central Cal [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

Wando [Member]

Wando [Member]

Adrian [Member]

Adrian [Member]

Marisol [Member]

Marisol [Member]

TA Drayage [Member]

TA Drayage [Member]

GW Palmer [Member]

GW Palmer [Member]

YES Trans [Member]

YES Trans [Member]

2012 [Member]

2012 [Member]

2012 [Member]

2012 [Member]

2012 [Member]

2012 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2014 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2015 [Member]

2016 [Member]

2016 [Member]

2016 [Member]

2016 [Member]

2016 [Member]

2016 [Member]

2017 [Member]

2017 [Member]

2017 [Member]

TMS [Member]

TMS [Member]

TMS [Member]

TL [Member]

TL [Member]

TL [Member]

TL [Member]

TL [Member]

TL [Member]

LTL [Member]

Maximum [Member]

Minimum [Member]

CTL [Member]

D&E [Member]

CTW [Member]

EFS [Member]

CTL [Member]

D&E [Member]

CTW [Member]

R & M [Member]

EFS [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

GW Palmer [Member]

CTW [Member]

R & M [Member]

EFS [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

Adrian [Member]

Marisol [Member]

GW Palmer [Member]

YES Trans [Member]

R & M [Member]

EFS [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

Adrian [Member]

Marisol [Member]

GW Palmer [Member]

YES Trans [Member]

EFS [Member]

Central Cal [Member]

A&A [Member]

Adrian [Member]

GW Palmer [Member]

YES Trans [Member]

Adrian [Member]

GW Palmer [Member]

YES Trans [Member]

CTL [Member]

Adrian [Member]

Marisol [Member]

D&E [Member]

CTW [Member]

R & M [Member]

Central Cal [Member]

A&A [Member]

DCT [Member]

EFS [Member]

D&E [Member]

D&E [Member]

Business Acquisition (Textual) [Abstract]

'

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'

'

'

'

'

'

'

'

'

'

'

Date of acquisition

'

'

'

'

'

24-Feb-12

'

19-Apr-12

'

4-Jun-12

'

1-Aug-12

'

10-Aug-12

'

5-Nov-12

12-Nov-12

21-Dec-12

'

30-Apr-13

'

30-Apr-13

'

25-Jul-13

'

15-Aug-13

'

11-Sep-13

'

18-Sep-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consideration Transferred

'

'

'

'

$6,200,000

'

$11,400,000

'

$7,600,000

'

$24,200,000

'

$10,000,000

'

$3,800,000

'

'

'

$9,000,000

'

$14,200,000

'

$66,000,000

'

$1,200,000

'

$2,500,000

'

$1,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$24,100,000

$1,000,000

'

'

'

Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High

2,500,000

'

2,500,000

'

'

800,000

'

'

'

3,500,000

'

5,000,000

'

4,000,000

'

4,000,000

2,500,000

1,000,000

'

'

'

6,500,000

'

'

'

'

'

2,800,000

'

1,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

800,000

'

'

700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

700,000

'

Business Combination, Contingent Consideration Arrangements, Basis

'

'

'

'

'

'

'

5,000,000

'

'

'

1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,800,000

2,000,000

2,000,000

900,000

'

'

'

'

1,800,000

2,000,000

2,000,000

4,500,000

2,300,000

1,400,000

3,000,000

400,000

900,000

2,000,000

4,500,000

2,500,000

1,800,000

3,000,000

400,000

2,300,000

7,800,000

1,000,000

200,000

4,500,000

2,500,000

1,800,000

3,000,000

400,000

2,300,000

7,800,000

1,000,000

200,000

2,800,000

1,800,000

3,000,000

2,300,000

1,000,000

200,000

2,300,000

1,000,000

200,000

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

700,000

5,300,000

1,900,000

1,000,000

2,600,000

4,200,000

3,400,000

2,200,000

1,000,000

3,100,000

'

'

Revenue of acquiree since acquisition date, actual

32,800,000

23,100,000

40,600,000

32,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Earnings or loss of acquiree since acquisition date, actual

2,100,000

2,500,000

3,200,000

4,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impact on revenue on a pro forma basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

297,048,000

884,413,000

'

'

'

'

377,327,000

328,754,000

1,099,439,000

921,033,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impact on net income on a pro forma basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$9,971,000

$29,290,000

'

'

'

'

$13,199,000

$10,234,000

$37,923,000

$28,868,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Rollforward of goodwill by reportable segment	'
Goodwill balance as of December 31, 2012	$442,143
Acquisitions	77,041
Adjustments to goodwill for purchase accounting	-3,322
Goodwill balance as of September 30, 2013	515,862
LTL [Member]	'
Rollforward of goodwill by reportable segment	'
Goodwill balance as of December 31, 2012	197,456
Acquisitions	0
Goodwill balance as of September 30, 2013	197,313
TL [Member]	'
Rollforward of goodwill by reportable segment	'
Goodwill balance as of December 31, 2012	202,547
Acquisitions	8,248
Goodwill balance as of September 30, 2013	207,612
TMS [Member]	'
Rollforward of goodwill by reportable segment	'
Goodwill balance as of December 31, 2012	42,140
Acquisitions	68,793
Goodwill balance as of September 30, 2013	$110,937

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Details 1) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Intangible assets	'	'
Net Carrying Value	$24,607	'
Customer relationships [Member]	'	'
Intangible assets	'	'
Gross Carrying Amount	30,660	17,099
Accumulated Amortization	-6,053	-4,389
Net Carrying Value	24,607	12,710
Customer relationships [Member] | Customer relationships - TL [Member]	'	'
Intangible assets	'	'
Gross Carrying Amount	17,950	15,115
Accumulated Amortization	-4,829	-3,430
Net Carrying Value	13,121	11,685
Customer relationships [Member] | Customer relationships - LTL [Member]	'	'
Intangible assets	'	'
Gross Carrying Amount	1,358	1,358
Accumulated Amortization	-667	-497
Net Carrying Value	691	861
Customer relationships [Member] | Customer Relationships - TMS [Member]	'	'
Intangible assets	'	'
Gross Carrying Amount	11,352	626
Accumulated Amortization	-557	-462
Net Carrying Value	$10,795	$164

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Details 2) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$869
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	3,576
Finite-Lived Intangible Assets, Amortization Expense, Year Two	3,379
Finite-Lived Intangible Assets, Amortization Expense, Year Three	3,287
Finite-Lived Intangible Assets, Amortization Expense, Year Four	3,166
Finite-Lived Intangible Assets, Amortization Expense, Year Five	2,877
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	7,453
Finite-Lived Intangible Assets, Net	$24,607

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Goodwill and Intangible Assets (Additional Textual) [Abstract]	'	'	'	'
Impairment of goodwill	'	'	$0	'
Amortization expense for intangible assets	$600,000	$400,000	$1,700,000	$1,200,000
Customer relationships [Member] | Minimum [Member]	'	'	'	'
Goodwill and Intangible Assets (Textual) [Abstract]	'	'	'	'
Period of amortization of intangible assets	'	'	'5 years	'
Customer relationships [Member] | Maximum [Member]	'	'	'	'
Goodwill and Intangible Assets (Textual) [Abstract]	'	'	'	'
Period of amortization of intangible assets	'	'	'10 years	'

Fair_Value_Measurement_Details

Fair Value Measurement (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Total liabilities at fair value	$22,429	'	$22,429	'	$20,907	'	'	'
Income approach valuation technique [Member]	'	'	'	'	'	'	'	'
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Contingent Liability, Fair Value Disclosure	22,429	'	22,429	'	20,907	'	'	'
Level 1 [Member]	'	'	'	'	'	'	'	'
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Contingent Liability, Fair Value Disclosure	0	'	0	'	0	'	'	'
Total liabilities at fair value	'	'	'	'	'	'	'	'
Level 2 [Member]	'	'	'	'	'	'	'	'
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Contingent Liability, Fair Value Disclosure	0	'	0	'	0	'	'	'
Total liabilities at fair value	0	'	0	'	0	'	'	'
Level 3 [Member]	'	'	'	'	'	'	'	'
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Total liabilities at fair value	22,429	'	22,429	'	20,907	'	'	'
Balance, beginning of period	22,429	14,734	22,429	14,734	20,907	23,698	7,210	3,015
Earnouts and adjustments related to acquisitions	1,900	7,371	7,678	11,733	17,733	'	'	'
Payments of contingent purchase obligations	0	0	-2,407	-284	-284	'	'	'
Adjustments to contingent purchase obligation	-3,169	153	-3,749	270	443	'	'	'
Balance, end of period	22,429	14,734	22,429	14,734	20,907	23,698	7,210	3,015
Level 3 [Member] | Income approach valuation technique [Member]	'	'	'	'	'	'	'	'
Financial liabilities measured at fair value on a recurring basis	'	'	'	'	'	'	'	'
Contingent Liability, Fair Value Disclosure	$22,429	'	$22,429	'	$20,907	'	'	'

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Senior debt:	'	'
Total debt	$205,813	$161,500
Less: Current maturities	-9,844	-17,000
Total long-term debt, net of current maturities	195,969	144,500
Revolving credit facility [Member]	'	'
Senior debt:	'	'
Total debt	33,000	0
Term loans [Member]	'	'
Senior debt:	'	'
Total debt	$172,813	$161,500

LongTerm_Debt_Details_Textual

Long-Term Debt (Details Textual) (USD $)	9 Months Ended									9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Aug. 09, 2013	Aug. 03, 2012	Aug. 31, 2011	Aug. 09, 2013	Aug. 03, 2012	Aug. 31, 2011	Sep. 30, 2013	Sep. 30, 2013
			Revolving credit facility [Member]	Revolving credit facility [Member]	Revolving credit facility [Member]	Revolving credit facility [Member]	Term Loan Facility Maturing [Member]	Term Loan Facility Maturing [Member]	Term Loan Facility Maturing [Member]	Eurocurrency [Member]	Base Rate [Member]
Long-Term Debt (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Revolving credit facility	'	'	'	'	$125,000,000	$100,000,000	'	'	'	'	'
Increased revolving credit facility	'	'	'	200,000,000	'	'	'	'	'	'	'
Long-Term Debt (Additional Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Long-term debt	195,969,000	144,500,000	'	'	'	'	'	'	'	'	'
Term loan	'	'	'	'	'	'	175,000,000	170,000,000	140,000,000	'	'
Debt Instrument, Maturity Date	9-Aug-18	'	'	'	'	'	'	'	'	'	'
Quarterly Repayments of Principal in Next Twelve Months	2,200,000	'	'	'	'	'	'	'	'	'	'
Quarterly Repayments of Principal Years Two and Three	3,300,000	'	'	'	'	'	'	'	'	'	'
Credit agreement date	3-Aug-12	'	'	'	'	'	'	'	'	'	'
Quarterly Repayments of Principal Years Four and Five	4,400,000	'	'	'	'	'	'	'	'	'	'
Variable rate applicable margin range, Minimum	'	'	'	'	'	'	'	'	'	2.00%	1.00%
Variable rate applicable margin range, Maximum	'	'	'	'	'	'	'	'	'	3.30%	2.30%
Issuance in letters of credit	'	'	30,000,000	'	'	'	'	'	'	'	'
Outstanding letters of credit	10,800,000	'	'	'	'	'	'	'	'	'	'
Total availability under revolving credit facility	'	'	$156,200,000	'	'	'	'	'	'	'	'
Average interest rate on credit agreement	3.00%	'	'	'	'	'	'	'	'	'	'

Stockholders_Investment_Detail

Stockholders' Investment (Details) (USD $)	0 Months Ended	3 Months Ended		9 Months Ended
	Jan. 04, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Aug. 14, 2013
Class of Stock [Line Items]	'	'	'	'	'	'
Options to purchase additonal shares	525,000	'	'	'	'	'
Stock Issued During Period, Shares, New Issues	'	'	'	1,500,000	'	'
Share Price	$17.25	'	'	'	'	$27
Proceeds from Sale of Shares, Net of Underwriting Discount and Estimated Expenses	$8,500,000	'	'	'	'	'
Underwriting Discounts and Commission	'	'	'	2,300,000	'	'
Stockholders' investment:	'	'	'	'	'	'
Beginning balance	392,079,000	429,973,000	315,524,000	392,079,000	295,953,000	'
Net Income	'	13,230,000	9,872,000	37,782,000	28,003,000	'
Share-based Compensation	'	451,000	174,000	1,155,000	493,000	'
Issuance of common stock - stock offering	'	38,400,000	'	52,474,000	823,000	'
Excess tax benefit on stock-based compensation	'	3,765,000	0	3,765,000	0	'
Other Changes	'	0	-1,501,000	0	-1,237,000	'
Ending balance	'	487,745,000	325,272,000	487,745,000	325,272,000	'
Common Stock [Member]	'	'	'	'	'	'
Stockholders' investment:	'	'	'	'	'	'
Issuance of common stock - stock offering	'	38,150,000	0	46,653,000	0	'
Warrant [Member]	'	'	'	'	'	'
Stockholders' investment:	'	'	'	'	'	'
Issuance of common stock - stock offering	'	$2,176,000	$1,203,000	$6,311,000	$2,060,000	'

Preferred_Stock_Details

Preferred Stock (Details) (Series A preferred stock [Member], USD $)	1 Months Ended	9 Months Ended
	Mar. 31, 2012	Sep. 30, 2013	Nov. 30, 2012	Mar. 31, 2007
				Liquidation preference [Member]
Preferred Stock (Textual) [Abstract]	'	'	'	'
Issued and outstanding shares of Series A preferred stock	'	'	'	5,000
Per share amount of Series A preferred stock	'	'	$1,000	'
Preferred stock dividend annual rate	'	$40	'	'
Series A preferred stock repurchased	5,000	'	'	'

Earnings_Per_Share_Details

Earnings Per Share (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding	'	'	'	'
Basic weighted average stock outstanding	36,407	30,859	35,666	30,808
Dilutive weighted average stock outstanding	38,191	32,260	37,469	32,220
Warrant [Member]	'	'	'	'
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding	'	'	'	'
Warrants	1,291	941	1,292	916
Employee Stock Option [Member]	'	'	'	'
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding	'	'	'	'
Employee stock options	424	446	463	450
Restricted Stock Units (RSUs) [Member]	'	'	'	'
Reconciling basic to diluted weighted average stock outstanding to diluted weighted average stock outstanding	'	'	'	'
Employee stock options	69	14	48	46

Earnings_Per_Share_Details_Tex

Earnings Per Share (Details Textual) (Stock options [Member], Warrants [Member])	9 Months Ended
	Sep. 30, 2012
Stock options [Member] | Warrants [Member]	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'
Additional stock options and warrants outstanding	308,698

Income_Taxes_Details

Income Taxes (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Taxes (Textual) [Abstract]	'	'	'	'
Effective income tax rate	38.70%	38.50%	38.70%	38.30%
Federal corporate income tax rate	'	'	35.00%	'

Guarantees_Guarantees_Details

Guarantees Guarantees (Details) (USD $)	Sep. 30, 2013
In Millions, unless otherwise specified
Guarantor Obligations [Line Items]	'
Guarantees ExpirationYear	'2020
Guarantor Obligations, Maximum Exposure, Undiscounted	$7.40

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Insurance Claims [Member]	'	'
Commitments and Contingencies (Textual) [Abstract]	'	'
Liability and cargo insurance coverage for claims	$500,000	'
Cargo Claims [Member]	'	'
Commitments and Contingencies (Textual) [Abstract]	'	'
Liability and cargo insurance coverage for claims	100,000	'
Uninsured Risk [Member]	'	'
Commitments and Contingencies (Textual) [Abstract]	'	'
Reserves for estimated uninsured losses	$5,700,000	$5,000,000

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 12, 2011
Related Party Transactions (Textual) [Abstract]	'	'	'	'	'
Related Party Transaction, Payment	$0.10	$0.10	$0.20	$0.10	'
Annual advisory fee	'	'	'	'	$0.10

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
			Segment
Segment Reporting Information [Line Items]	'	'	'	'	'
Number of Operating Segments	'	'	3	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Revenues	$363,156	$279,165	$994,444	$778,284	'
Operating Income	23,659	18,005	67,194	51,218	'
Interest expense	2,078	1,943	5,563	5,861	'
Income before provision for income taxes	21,581	16,062	61,631	45,357	'
Depreciation and amortization	4,029	2,424	11,230	6,509	'
Payments to Acquire Productive Assets, Non Cash and Cash	6,030	5,214	24,379	12,026	'
Total assets	854,241	'	854,241	'	700,808
LTL [Member]	'	'	'	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Revenues	144,190	132,451	423,426	381,121	'
Operating Income	10,907	10,015	31,693	28,919	'
Depreciation and amortization	614	627	2,396	1,688	'
Payments to Acquire Productive Assets, Non Cash and Cash	2,348	1,802	5,061	5,661	'
Total assets	582,357	'	582,357	'	490,067
TL [Member]	'	'	'	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Revenues	170,102	124,212	477,878	333,284	'
Operating Income	10,843	7,321	31,862	19,812	'
Depreciation and amortization	3,057	1,603	8,071	4,247	'
Payments to Acquire Productive Assets, Non Cash and Cash	3,552	3,406	19,136	6,302	'
Total assets	384,008	'	384,008	'	339,890
TMS [Member]	'	'	'	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Revenues	50,921	23,955	99,331	67,762	'
Operating Income	4,634	2,746	10,923	7,723	'
Depreciation and amortization	291	194	643	574	'
Payments to Acquire Productive Assets, Non Cash and Cash	130	6	182	63	'
Total assets	156,553	'	156,553	'	61,076
Eliminations [Member]	'	'	'	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Revenues	-2,057	-1,453	-6,191	-3,883	'
Total assets	-268,677	'	-268,677	'	-190,225
Corporate [Member]	'	'	'	'	'
Schedule of financial data of reportable segments	'	'	'	'	'
Operating Income	-2,725	-2,077	-7,284	-5,236	'
Depreciation and amortization	67	0	120	0	'
Payments to Acquire Productive Assets, Non Cash and Cash	$0	$0	'	$0	'