Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 20, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount		$ 76,700
Accumulated amortization of amortized intangible assets		23,800
Amortization of intangible assets	$ 10,000	6,309	$ 6,235
Goodwill	$ 17,300	180,934	164,382	$ 166,796
Cost of Goods Sold [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		3,000	2,900	3,300
Selling, general and administrative expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 3,300	$ 3,300	$ 3,600