Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 283,445	$ 168,141
Amortizable intangible assets, accumulated amortization	(141,424)	(119,425)
Amortizable intangible assets, net carrying amount	$ 142,021	$ 48,716
Amortizable intangible assets, weighted average remaining life (Years)	11 years 3 months 18 days	10 years 2 months 12 days
Non-amortizable intangible assets	$ 13,027	$ 13,027
Gross carrying amount	296,472	181,168
Net carrying amount	155,048	61,743	$ 66,269
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	130,890	84,742
Amortizable intangible assets, accumulated amortization	(77,295)	(67,902)
Amortizable intangible assets, net carrying amount	$ 53,595	$ 16,840
Amortizable intangible assets, weighted average remaining life (Years)	10 years 2 months 12 days	7 years 7 months 6 days
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 131,809	$ 69,554
Amortizable intangible assets, accumulated amortization	(52,015)	(42,934)
Amortizable intangible assets, net carrying amount	$ 79,794	$ 26,620
Amortizable intangible assets, weighted average remaining life (Years)	12 years 3 months 18 days	12 years 10 months 24 days
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 2,524	$ 622
Amortizable intangible assets, accumulated amortization	(2,284)	(540)
Amortizable intangible assets, net carrying amount	$ 240	$ 82
Amortizable intangible assets, weighted average remaining life (Years)	9 months 18 days	10 months 24 days
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	(1,956)	(1,419)
Amortizable intangible assets, net carrying amount	$ 558	$ 1,095
Amortizable intangible assets, weighted average remaining life (Years)	10 months 24 days	2 years
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 15,708	$ 10,709
Amortizable intangible assets, accumulated amortization	(7,874)	(6,630)
Amortizable intangible assets, net carrying amount	$ 7,834	$ 4,079
Amortizable intangible assets, weighted average remaining life (Years)	9 years 8 months 12 days	8 years 3 months 18 days