Income Taxes (Components Of Deferred Income Tax Liabilities And Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
Deferred income tax (liabilities):
Accrued expenses	$ (971)	$ 0
Bad Debt	(260)	0
Fixed Assets	(14,044)	(6,343)
Intangible Assets	(54,032)	(73,558)
Inventory	(1,121)	0
Other	(697)	151
Pension	(210)	0
Total deferred income tax liabilities	(71,335)	(79,750)
Deferred Tax Assets, Gross [Abstract]
Accrued expenses	5,202	15,153
Bad Debt	2,247	(2,069)
Equity Compensation	3,373	4,760
Intangible Assets	4	0
Inventory	7,439	4,696
Other	11,510	307
Net operating loss and credit carry-forward	23,124	26,298
Pension	32,901	29,400
Interest	9,836	5,067
Total deferred income tax assets	95,636	83,612
Valuation allowance	14,303	17,562	$ 22,067	$ 3,028
Deferred income tax asset, net of valuation allowance	81,333	66,050
Deferred income tax asset, net	$ 9,998
Deferred income tax liability, net		$ (13,700)