Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 165,858	$ 155,127
Amortizable intangible assets, accumulated amortization	(112,616)	(100,912)
Amortizable intangible assets, net carrying amount	$ 53,242	$ 54,215
Amortizable intangible assets, weighted average remaining life (Years)	11 years	11 years 9 months 18 days
Non-amortizable intangible assets	$ 13,027	$ 13,027
Gross carrying amount	178,885	168,154
Net carrying amount	66,269	67,242
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	82,821	78,253
Amortizable intangible assets, accumulated amortization	(66,297)	(62,010)
Amortizable intangible assets, net carrying amount	$ 16,524	$ 16,243
Amortizable intangible assets, weighted average remaining life (Years)	7 years 8 months 12 days	7 years 6 months
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 67,168	$ 63,029
Amortizable intangible assets, accumulated amortization	(36,914)	(31,531)
Amortizable intangible assets, net carrying amount	$ 30,254	$ 31,498
Amortizable intangible assets, weighted average remaining life (Years)	13 years 7 months 6 days	14 years 8 months 12 days
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 2,644	$ 1,810
Amortizable intangible assets, accumulated amortization	(2,589)	(1,641)
Amortizable intangible assets, net carrying amount	$ 55	$ 169
Amortizable intangible assets, weighted average remaining life (Years)	1 year	2 months 12 days
Non-compete Covenant
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 2,514	$ 1,830
Amortizable intangible assets, accumulated amortization	(882)	(366)
Amortizable intangible assets, net carrying amount	$ 1,632	$ 1,464
Amortizable intangible assets, weighted average remaining life (Years)	3 years 2 months 12 days	4 years 2 months 12 days
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 10,711	$ 10,205
Amortizable intangible assets, accumulated amortization	(5,934)	(5,364)
Amortizable intangible assets, net carrying amount	$ 4,777	$ 4,841
Amortizable intangible assets, weighted average remaining life (Years)	9 years 1 month 6 days	9 years 9 months 18 days