Intangibles (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 7,018	$ 27,115
Accumulated Amortization	(119)	(19,825)
Net Balance	$ 6,899	7,290
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	10 years
Gross Amount	$ 4,898	9,045
Accumulated Amortization	(84)	(6,270)
Net Balance	$ 4,814	2,775
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	17 years
Gross Amount		14,592
Accumulated Amortization		(10,077)
Net Balance		4,515
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	10 years
Gross Amount	$ 2,120
Accumulated Amortization	(35)
Net Balance	$ 2,085
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	3 years
Gross Amount		3,478
Accumulated Amortization		$ (3,478)