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Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Abstract]      
U.S. Federal, current $ 75 $ 300 $ (4,521)
State and local, current 86 948 294
Foreign, current 7,003 5,730 3,326
Current Income Tax Expense (Benefit), Total 7,164 6,978 (901)
U.S. Federal, deferred (16,963) (407) 1,789
State and local, deferred 442 (52) 355
Foreign, deferred (1,470) 739 (3,217)
Deferred Income Tax Expense (Benefit), Total (17,991) 280 (1,073)
Total income tax expense (benefit) $ (10,827) $ 7,258 $ (1,974)