Income Taxes (Schedule 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 tax	$ 2,869	$ (2,530)	$ (4,187)
Current, state and local tax	2,176	1,256	5
Current, Non-U.S. tax	32,816	26,560	28,744
Total current	37,861	25,286	24,562
Deferred, U.S. federal tax	(45,576)	26,326	19,879
Deferred, U.S. state and local tax	524	238	2,720
Deferred, Non-U.S. tax	1,129	4,889	3,685
Total deferred	(43,923)	31,453	26,284
Total provision for income taxes	$ (6,062)	$ 56,739	$ 50,846