Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 168,141	$ 165,858
Amortizable intangible assets, accumulated amortization	(119,425)	(112,616)
Amortizable intangible assets, net carrying amount	$ 48,716	$ 53,242
Amortizable intangible assets, weighted average remaining life (Years)	10 years 2 months 12 days	11 years
Non-amortizable intangible assets	$ 13,027	$ 13,027
Gross carrying amount	181,168	178,885
Net carrying amount	61,743	66,269
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	84,742	82,821
Amortizable intangible assets, accumulated amortization	(67,902)	(66,297)
Amortizable intangible assets, net carrying amount	$ 16,840	$ 16,524
Amortizable intangible assets, weighted average remaining life (Years)	7 years 7 months 6 days	7 years 8 months 12 days
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 69,554	$ 67,168
Amortizable intangible assets, accumulated amortization	(42,934)	(36,914)
Amortizable intangible assets, net carrying amount	$ 26,620	$ 30,254
Amortizable intangible assets, weighted average remaining life (Years)	12 years 10 months 24 days	13 years 7 months 6 days
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 622	$ 2,644
Amortizable intangible assets, accumulated amortization	(540)	(2,589)
Amortizable intangible assets, net carrying amount	$ 82	$ 55
Amortizable intangible assets, weighted average remaining life (Years)	10 months 24 days	1 year
Non-compete Covenant
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 2,514	$ 2,514
Amortizable intangible assets, accumulated amortization	(1,419)	(882)
Amortizable intangible assets, net carrying amount	$ 1,095	$ 1,632
Amortizable intangible assets, weighted average remaining life (Years)	2 years	3 years 2 months 12 days
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 10,709	$ 10,711
Amortizable intangible assets, accumulated amortization	(6,630)	(5,934)
Amortizable intangible assets, net carrying amount	$ 4,079	$ 4,777
Amortizable intangible assets, weighted average remaining life (Years)	8 years 3 months 18 days	9 years 1 month 6 days