Goodwill and Intangible Assets Intangibles Table (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 267,567	$ 267,311
Finite-Lived Intangible Assets, Accumulated Amortization	95,104	89,443
Finite-Lived Intangible Assets, Net	172,463	177,868
Indefinite-lived Intangible Assets (Excluding Goodwill)	20,611	19,363
Intangible Assets, Gross (Excluding Goodwill)	288,178	286,674
INTANGIBLE ASSETS, net	$ 193,074	$ 197,231	[1]
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years
Finite-Lived Intangible Assets, Gross	$ 25,423	$ 24,797
Finite-Lived Intangible Assets, Accumulated Amortization	15,466	15,056
Finite-Lived Intangible Assets, Net	$ 9,957	$ 9,741
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years	12 years
Finite-Lived Intangible Assets, Gross	$ 10,310	$ 10,365
Finite-Lived Intangible Assets, Accumulated Amortization	5,929	5,852
Finite-Lived Intangible Assets, Net	$ 4,381	$ 4,513
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	$ 57,748	$ 58,061
Finite-Lived Intangible Assets, Accumulated Amortization	28,233	26,711
Finite-Lived Intangible Assets, Net	$ 29,515	$ 31,350
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	$ 18,268	$ 18,270
Finite-Lived Intangible Assets, Accumulated Amortization	3,808	3,500
Finite-Lived Intangible Assets, Net	$ 14,460	$ 14,770
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	13 years	13 years
Finite-Lived Intangible Assets, Gross	$ 152,893	$ 152,893
Finite-Lived Intangible Assets, Accumulated Amortization	40,062	36,927
Finite-Lived Intangible Assets, Net	$ 112,831	$ 115,966
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years	3 years
Finite-Lived Intangible Assets, Gross	$ 2,500	$ 2,500
Finite-Lived Intangible Assets, Accumulated Amortization	1,181	972
Finite-Lived Intangible Assets, Net	$ 1,319	$ 1,528

[1] December 31, 2020 balances were derived from audited consolidated financial statements.