Annual report pursuant to Section 13 and 15(d)

Income Taxes (Components Of Provision For Income Taxes) (Details)

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Income Taxes (Components Of Provision For Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current income tax provision:      
Federal $ (76,992) $ (68,593) $ (61,264)
State (8,904) (9,217) (7,650)
Current income tax provision (85,896) (77,810) (68,914)
Deferred income tax benefit (provision):      
Federal 1,814 (1,900) 5,082
State 709 (396) (2,345)
Deferred income tax (provision) benefit 2,523 (2,296) 2,737
Income tax provision $ (83,373) $ (80,106) $ (66,177)