Goodwill And Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 116,379	$ 116,280
Accumulated Amortization	(42,108)	(29,141)
Net Carrying Amount	74,271	87,139
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	57,866	57,849
Accumulated Amortization	(11,993)	(6,427)
Net Carrying Amount	$ 45,873	$ 51,422
Intangible asset, useful life	11 years	11 years
Technology, trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 41,297	$ 41,184
Accumulated Amortization	(16,128)	(10,474)
Net Carrying Amount	$ 25,169	$ 30,710
Intangible asset, useful life	7 years	7 years
Production know-how
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9,180	$ 9,211
Accumulated Amortization	(7,415)	(6,212)
Net Carrying Amount	$ 1,765	$ 2,999
Intangible asset, useful life	7 years	7 years
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,036	$ 8,036
Accumulated Amortization	(6,572)	(6,028)
Net Carrying Amount	$ 1,464	$ 2,008
Intangible asset, useful life	8 years	8 years