Income Taxes (Schedule Of Components Of Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Current - U.S. federal	$ 69,164	$ 31,459	$ 18,351
Current - U.S. state and local	5,283	2,392	2,060
Current - Non-U.S.	41,084	24,646	17,345
Deferred - U.S. federal	(3,048)	1,680	(3,810)
Deferred - U.S. state and local	(825)	1,518	(1,143)
Deferred - Non-U.S.	(4,219)	(4,798)	(7,898)
Provision for income taxes	$ 107,439	$ 56,897	$ 24,905