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Income Taxes (Schedule of Current Income Taxes Receivable and Deferred) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Abstract]    
Income taxes receivable    $ 9,884
Deferred income taxes 20,594 20,126
Total current income taxes receivable and deferred $ 20,594 $ 30,010