Income Taxes (Principal Components Of The Company's Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred Tax Assets, Net [Abstract]
Accruals not yet tax deductible	$ 120,817	$ 128,307
Pension and postretirement benefit plan obligations	104,723	5,192
Stock compensation	21,089	22,370
Net operating loss carryforward	41,927	40,530
Valuation allowance	(25,462)	(21,818)
Other, net	38,465	37,034
Deferred tax assets, net	301,559	211,615
Deferred Tax Liabilities, Gross [Abstract]
Depreciation, tax in excess of book	(128,117)	(119,916)
Other	(5,691)	(34,234)
Deferred tax liabilities, net	(133,808)	(154,150)
Total	$ 167,751	$ 57,465