Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

Goodwill, balance as of December 31, 2015	$	299,355
Purchase accounting adjustments		(1,858	)
Currency translation adjustment		409
Goodwill, balance as of December 31, 2016	$	297,906

Summary of Intangible Assets of Company by Major Class

The following table summarizes the intangible assets of the Company by major class of intangible assets and the cost, accumulated amortization, net carrying amount, and weighted average life (in thousands):

	December 31, 2016								December 31, 2015
								Weighted								Weighted
								Average								Average
	Gross					Net		Useful	Gross					Net		Useful
	Carrying		Accumulated			Carrying		Life	Carrying		Accumulated			Carrying		Life
	Amount		Amortization			Amount		(years)	Amount		Amortization			Amount		(years)
Intangible assets subject to amortization
Customer relationships and other intangibles	$	137,452	$	(62,235	)	$	75,217	16	$	137,938	$	(51,357	)	$	86,581	16
Non-compete agreements		4,649		(4,260	)		389	4		4,644		(4,260	)		384	4
Trademarks		13,704		(5,620	)		8,084	14		13,688		(4,240	)		9,448	14
Total	$	155,805	$	(72,115	)	$	83,690		$	156,270	$	(59,857	)	$	96,413

Summary of Amortization Expense Expected to be Incurred Over Next Five Years on Intangible Assets

The following table summarizes the amortization expense expected to be incurred over the next five years on intangible assets (in thousands):

Year	Amounts
2017	$	10,777
2018		8,039
2019		6,922
2020		6,919
2021		6,919