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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current      
Federal         
State 360 180 185
Foreign         
Deferred - principally Federal 15,632 3,054 7,291
Total $ 15,992 $ 3,234 $ 7,476