Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in carrying amount of goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2015 are as follows (in thousands):

	2015
Goodwill balance at January 1	184,464
Effect of foreign exchange	(41		)
Goodwill balance at June 30	$	184,423

Other intangible assets

Other intangible assets at June 30, 2015 and December 31, 2014, consisted of the following (in thousands):

	June 30, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	11,060	$	(2,374	)	$	8,686
Distribution agreements	5,626		(2,558		)	3,068
License agreements	11,396		(2,122		)	9,274
Trademarks	7,267		(2,313		)	4,954
Covenants not to compete	1,029		(755		)	274
Customer lists	20,405		(14,104		)	6,301
Royalty agreements	267		(267		)	—
Total	$	57,050	$	(24,493	)	$	32,557

	December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	10,199	$	(2,196	)	$	8,003
Distribution agreements	5,376		(2,285		)	3,091
License agreements	8,995		(1,823		)	7,172
Trademarks	7,298		(2,079		)	5,219
Covenants not to compete	1,029		(636		)	393
Customer lists	20,452		(13,194		)	7,258
Royalty agreements	267		(267		)	—
Total	$	53,616	$	(22,480	)	$	31,136

Estimated amortization expense

Estimated amortization expense for the developed technology and other intangible assets for the next five years consists of the following as of June 30, 2015 (in thousands):

Year Ending December 31
Remaining 2015	$	7,757
2016	14,728
2017	14,116
2018	13,782
2019	13,479