Goodwill and Intangible Assets Intangibles Table (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 168,417		$ 167,044
Finite-Lived Intangible Assets, Accumulated Amortization	35,533		31,516
Finite-Lived Intangible Assets, Net	132,884		135,528
Indefinite-Lived Intangible Assets (Excluding Goodwill)	3,761		8,225
Intangible Assets, Gross (Excluding Goodwill)	172,178		175,269
INTANGIBLE ASSETS, net	$ 136,645		143,753	[1]
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years
Finite-Lived Intangible Assets, Gross	$ 17,664		17,064
Finite-Lived Intangible Assets, Accumulated Amortization	11,249		10,970
Finite-Lived Intangible Assets, Net	$ 6,415		6,094
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years	9 years
Finite-Lived Intangible Assets, Gross	$ 5,319		5,319
Finite-Lived Intangible Assets, Accumulated Amortization	4,987		4,892
Finite-Lived Intangible Assets, Net	$ 332		427
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years	9 years
Finite-Lived Intangible Assets, Gross	$ 55,131		55,080
Finite-Lived Intangible Assets, Accumulated Amortization	8,187		6,562
Finite-Lived Intangible Assets, Net	$ 46,944		48,518
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years	4 years
Finite-Lived Intangible Assets, Gross	$ 425		425
Finite-Lived Intangible Assets, Accumulated Amortization	425		425
Finite-Lived Intangible Assets, Net	$ 0		0
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years
Finite-Lived Intangible Assets, Gross	$ 7,310		7,310
Finite-Lived Intangible Assets, Accumulated Amortization	1,218		1,096
Finite-Lived Intangible Assets, Net	$ 6,092		6,214
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	11 years	11 years
Finite-Lived Intangible Assets, Gross	$ 82,568		81,846
Finite-Lived Intangible Assets, Accumulated Amortization	9,467		7,571
Finite-Lived Intangible Assets, Net	$ 73,101		$ 74,275

[1] December 31, 2017 balances were derived from audited consolidated financial statements.