Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 215,325	$ 168,141
Amortizable intangible assets, accumulated amortization	(123,989)	(119,425)
Amortizable intangible assets, net carrying amount	91,336	48,716
Non-amortizable intangible assets	13,027	13,027
Gross carrying amount	228,352	181,168
Net carrying amount	104,363	61,743
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	105,232	84,742
Amortizable intangible assets, accumulated amortization	(69,585)	(67,902)
Amortizable intangible assets, net carrying amount	35,647	16,840
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	92,393	69,554
Amortizable intangible assets, accumulated amortization	(44,892)	(42,934)
Amortizable intangible assets, net carrying amount	47,501	26,620
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	2,156	622
Amortizable intangible assets, accumulated amortization	(1,101)	(540)
Amortizable intangible assets, net carrying amount	1,055	82
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	(1,553)	(1,419)
Amortizable intangible assets, net carrying amount	961	1,095
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	13,030	10,709
Amortizable intangible assets, accumulated amortization	(6,858)	(6,630)
Amortizable intangible assets, net carrying amount	$ 6,172	$ 4,079