Goodwill and Intangible Assets Intangibles Table (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 263,260	$ 263,275
Finite-Lived Intangible Assets, Accumulated Amortization	71,302	65,858
Finite-Lived Intangible Assets, Net	191,958	197,417
Indefinite-lived Intangible Assets (Excluding Goodwill)	14,879	13,991
Intangible Assets, Gross (Excluding Goodwill)	278,139	277,266
INTANGIBLE ASSETS, net	$ 206,837	$ 211,408	[1]
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years
Finite-Lived Intangible Assets, Gross	$ 22,854	$ 22,322
Finite-Lived Intangible Assets, Accumulated Amortization	13,886	13,519
Finite-Lived Intangible Assets, Net	$ 8,968	$ 8,803
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years	12 years
Finite-Lived Intangible Assets, Gross	$ 10,093	$ 10,122
Finite-Lived Intangible Assets, Accumulated Amortization	5,584	5,506
Finite-Lived Intangible Assets, Net	$ 4,509	$ 4,616
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	$ 56,258	$ 57,296
Finite-Lived Intangible Assets, Accumulated Amortization	21,102	19,787
Finite-Lived Intangible Assets, Net	$ 35,156	$ 37,509
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	$ 18,237	$ 18,256
Finite-Lived Intangible Assets, Accumulated Amortization	2,555	2,254
Finite-Lived Intangible Assets, Net	$ 15,682	$ 16,002
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	$ 152,354
Finite-Lived Intangible Assets, Accumulated Amortization	27,403	24,228
Finite-Lived Intangible Assets, Net	$ 125,490	$ 128,126
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	347	139
Finite-Lived Intangible Assets, Net	$ 2,153	$ 2,361

[1] December 31, 2019 balances were derived from audited consolidated financial statements.