Goodwill and Identified Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 254,735	$ 251,044
Accumulated Amortization	(77,428)	(68,771)
Net Carrying Amount	$ 177,307	182,273
License Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	5 years
Gross Carrying Amount	$ 3,896	3,908
Accumulated Amortization	(3,237)	(3,131)
Net Carrying Amount	$ 659	777
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	0 years
Gross Carrying Amount	$ 4,713	4,731
Accumulated Amortization	(4,713)	(4,731)
Net Carrying Amount	$ 0	0
Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	12 years
Gross Carrying Amount	$ 2,067	2,067
Accumulated Amortization	(729)	(623)
Net Carrying Amount	$ 1,338	1,444
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	15 years
Gross Carrying Amount	$ 22,496	21,722
Accumulated Amortization	(5,995)	(5,199)
Net Carrying Amount	$ 16,501	16,523
Non-competes [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	3 years
Gross Carrying Amount	$ 1,210	1,140
Accumulated Amortization	(917)	(839)
Net Carrying Amount	$ 293	301
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	13 years
Gross Carrying Amount	$ 164,930	163,386
Accumulated Amortization	(39,464)	(32,196)
Net Carrying Amount	$ 125,466	131,190
Patents and acquired technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives	14 years
Gross Carrying Amount	$ 55,423	54,090
Accumulated Amortization	(22,373)	(22,052)
Net Carrying Amount	$ 33,050	$ 32,038