Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill and accumulated impairment losses were as follows:


	2015									2014
	Gross Carrying Amount			Accumulated Impairment Loss			Net			Gross Carrying Amount			Accumulated Impairment Loss			Net
Beginning balance at January 1	$	331,795		$	(139,414	)	$	192,381		$	290,323		$	(139,414	)	$	150,909
Acquired goodwill(1)		8,017			—			8,017			41,993			—			41,993
Foreign currency translation		(695	)		—			(695	)		(521	)		—			(521	)

Ending balance at December 31	$	339,117		$	(139,414	)	$	199,703		$	331,795		$	(139,414	)	$	192,381

(1)

During 2015, the Company recorded $7,042 of goodwill related to the acquisition of Precisive. During the second quarter of 2015, the Company recorded a purchase accounting adjustment of $975 primarily related to an inventory valuation adjustment related to the acquisition of GP. During 2014, the Company recorded $41,612 of goodwill related to the acquisition of GP and recorded a purchase accounting adjustment of $381 related to the 2013 purchase of Alter S.r.l.

Intangible Assets

Components of the Company’s acquired intangible assets are comprised of the following:


As of December 31, 2015	Gross		Accumulated Amortization			Foreign Currency Translation			Net
Completed technology(1)	$	101,200	$	(82,330	)	$	(272	)	$	18,598
Customer relationships(1)		37,251		(16,345	)		10			20,916
Patents, trademarks, trade names and other(1)		30,396		(25,888	)		5			4,513

	$	168,847	$	(124,563	)	$	(257	)	$	44,027

(1)	During 2015, the Company recorded $5,110 of separately identified intangible assets related to the acquisition of Precisive, of which $820 was completed technology, $1,430 was customer relationships and $2,860 was patents, trademarks, trade names and other.


As of December 31, 2014	Gross		Accumulated Amortization			Foreign Currency Translation		Net
Completed technology(1)	$	100,380	$	(79,875	)	$	135	$	20,640
Customer relationships(1)		35,821		(12,634	)		280		23,467
Patents, trademarks, trade names and other(1)		27,536		(25,290	)		36		2,282

	$	163,737	$	(117,799	)	$	451	$	46,389

(1)	During 2014, the Company recorded $38,850 of separately identified intangible assets related to the acquisition of GP, of which $15,700 was completed technology, $21,250 was customer relationships and $1,900 was patents, trademarks, trade names and other.

Estimated Amortization Expense

Aggregate amortization expense related to acquired intangible assets for future years is:


Year	Amount
2016	$	6,644
2017		6,561
2018		6,546
2019		6,504
2020		6,450
Thereafter		11,322