GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

The change in the carrying amount of goodwill is as follows (in thousands):



	NAST			Global Forwarding			Robinson Fresh			All Other and Corporate			Total
December 31, 2015 balance	$	815,639		$	142,993		$	125,469		$	24,236		$	1,108,337
Acquisitions	97,727			17,133			15,033			2,904			132,797
Translation	(6,136		)	(1,076		)	(944		)	(182		)	(8,338		)
December 31, 2016 balance	907,230			159,050			139,558			26,958			1,232,796
Acquisitions	3,673			24,918			—			—			28,591
Translation	10,583			1,905			1,627			314			14,429
December 31, 2017 balance	$	921,486		$	185,873		$	141,185		$	27,272		$	1,275,816

Schedule of Intangible Assets

Identifiable intangible assets consisted of the following at December 31 (in thousands):



	2017							2016
	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Finite-lived intangibles
Customer relationships	$	263,093	$	(122,103	)	$	140,990	$	244,036	$	(87,199	)	$	156,837
Non-competition agreements	300		(180		)	120		500		(287		)	213
Total finite-lived intangibles	263,393		(122,283		)	141,110		244,536		(87,486		)	157,050
Indefinite-lived intangibles
Trademarks	10,475		—			10,475		10,475		—			10,475
Total intangibles	$	273,868	$	(122,283	)	$	151,585	$	255,011	$	(87,486	)	$	167,525

Schedule of Amortization Expense

Amortization expense for other intangible assets was (in thousands):



2017	$	36,273
2016	27,053
2015	24,373

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Finite-lived intangible assets, by reportable segment, as of December 31, 2017, will be amortized over their remaining lives as follows (in thousands):



	NAST		Global Forwarding		Robinson Fresh		All Other and Corporate		Total
2018	$	7,820	$	29,297	$	—	$	41	$	37,158
2019	7,820		29,297		—		—		37,117
2020	260		26,593		—		—		26,853
2021	260		13,072		—		—		13,332
2022	260		13,072		—		—		13,332
Thereafter	480		12,838		—		—		13,318
Total									$	141,110