Income Taxes (Components Of Deferred Income Tax Liabilities And Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Excess tax over book depreciation	$ 11,210	$ 5,070
Deferred Tax Liabilities, Other	4,650	1,314
Intangibles	42,837	10,119
Total deferred income tax liabilities	58,697	16,503
Accrued expenses	8,146	9,037
Equity Compensation	6,461	5,710
Inventories	9,323	8,686
Net operating loss and credit carry-forward	3,974	4,653
Deferred Tax Assets, Tax Credit Carryforwards	18,177	7,760
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	17,700	7,800
Accumulated other comprehensive income-pension benefit obligation	5,262	6,466
Other	1,549	1,458
Total deferred income tax assets	52,892	43,770
Valuation allowance	(3,028)	(892)	$ (9,448)	$ (13,928)
Deferred income tax asset, net of valuation allowance	49,864	42,878
Deferred income tax asset, net	$ (8,833)	$ 26,375