XML 92 R84.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes Components of current and deferred income tax expense (benefit) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Current provision (benefit)                      
Federal                 $ (71,796) $ (114,617) $ (812,744)
State and other                 (28,116) (23,200) (17,395)
Current Income Tax Expense (Benefit)                 (99,912) (137,817) (830,139)
Deferred provision (benefit)                      
Federal                 0 0 37,587
State and other                 0 0 0
Deferred Income Tax Expense (Benefit)                 0 0 37,587
Income tax expense (benefit) $ (22,896) $ (73,202) $ 2,052 $ (5,866) $ (25,047) $ (28,721) $ (82,029) $ (2,020) $ (99,912) $ (137,817) $ (792,552)