Income Taxes (Components Of (Benefit) 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, Federal	$ 11,698	$ (376)	$ 10,784
Current, State	1,775	292	1,442
Current, Foreign	2,501	1,352	1,564
Total current provision	15,974	1,268	13,790
Deferred, Federal	(13,978)	(4,622)	899
Deferred, State	(2,204)	2,486	671
Deferred, Foreign	913	562	(157)
Total deferred (benefit) provision	(15,269)	(1,574)	1,413
Total provision (benefit)	$ 705	$ (306)	$ 15,203