Income Taxes (Components Of Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Current, Federal	$ 79,028	$ 57,423	$ 62,350
Current, State	7,886	5,770	5,589
Current, Foreign	22,046	24,011	21,964
Deferred, Federal	(21,026)	(11,768)	(15,173)
Deferred, State	(3,913)	(1,314)	(2,102)
Deferred, Foreign	6,043	10,061	(9,366)
Total	$ 90,064	$ 84,183	$ 63,262