Income Taxes (Schedule Of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Current provision (benefit), Federal	$ 3,804	$ (52,792)	$ 7,849
Current provision (benefit), State and local	4,156	179	624
Current provision (benefit), Foreign	2,228	1,589	2,237
Current provision (benefit)	10,188	(51,024)	10,710
Deferred provision (benefit), Federal	85,106	63,509	5,541
Federal net operating loss	(40,057)
Deferred provision (benefit), State and local	4,544	2,533	(262)
Deferred provision (benefit), Foreign	(152)	(2,446)	1,489
Deferred provision (benefit)	49,441	63,596	6,768
Income tax provision	$ 59,629	$ 12,572	$ 17,478