Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill / Tradename

(Table only in thousands)	Six months ended June 30, 2016				Year ended December 31, 2015
Goodwill / Tradename	Goodwill		Tradename		Goodwill			Tradename
Beginning balance	$	220,163	$	26,337	$	165,861		$	19,766
Acquisitions and related adjustments		365		—		55,655			10,280
Impairment		—		—		—			(3,340	)
Foreign currency translation		147		39		(1,353	)		(369	)
	$	220,675	$	26,376	$	220,163		$	26,337

Intangible Assets - Finite Life

(Table only in thousands)	As of  June 30, 2016						As of  December 31, 2015
Intangible assets – finite life	Cost			Accum. Amort.			Cost			Accum. Amort.
Patents	$	1,439		$	1,439		$	1,456		$	1,456
Employment agreements		733			733			733			677
Technology		15,867			5,232			15,867			4,027
Customer lists		77,497			21,854			77,497			17,756
Noncompetition agreements		1,118			368			1,118			257
Tradename		1,390			232			1,390			162
Backlog		4,270			3,558			4,270			1,423
Foreign currency adjustments		(2,197	)		(687	)		(2,309	)		(693	)
	$	100,117		$	32,729		$	100,022		$	25,065

Summary of Finite Lived Intangible Assets Activities

Activity for the six months ended June 30, 2016 and 2015 is as follows:

(Table only in thousands)	2016			2015
Intangible assets – finite life, net at beginning of period	$	74,957		$	58,398
Amortization expense		(7,645	)		(5,230	)
Acquisitions/purchase accounting adjustments		—			—
Foreign currency adjustments		76			(748	)
Intangible assets – finite life, net at end of period	$	67,388		$	52,420