Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Rollforward of goodwill by reportable segment

	TL		LTL		Global Solutions		Total
Goodwill balance as of December 31, 2015	$	254,940	$	197,312	$	230,558	$	682,810
Adjustments to goodwill for purchase accounting	569		—		—		569
Goodwill balance as of March 31, 2016	$	255,509	$	197,312	$	230,558	$	683,379

Intangible assets

	March 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Gross Carrying Amount		Accumulated Amortization			Net Carrying Value
TL	$	57,468	$	(10,922	)	$	46,546	$	57,468	$	(9,714	)	$	47,754
LTL	1,358		(1,033		)	325		1,358		(1,017		)	341
Global Solutions	38,427		(11,751		)	26,676		38,427		(10,828		)	27,599
Total	$	97,253	$	(23,706	)	$	73,547	$	97,253	$	(21,559	)	$	75,694

Estimated amortization expense

Remainder 2016	$	6,418
2017	8,447
2018	8,183
2019	7,879
2020	7,506
2021	7,324
Thereafter	27,790
Total	$	73,547