Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

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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
U.S. Federal:      
Current         
Deferred         
Foreign:      
Current 81,813 93,468 35,260
Deferred         
Total $ 81,813 $ 93,468 $ 35,260