Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details)

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Income Taxes Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]                      
Current, State                 $ 6,860 $ 84 $ 0
Current, Federal                 6,325 646 282
Deferred, State                 7,385 2,214 0
Deferred, Federal                 77,566 23,419 (372)
Income tax expense (benefit) recorded for continuing operations $ 21,027 $ 23,400 $ 25,514 $ 28,195 $ 10,849 $ 15,514 $ 0 $ 0 $ 98,136 $ 26,363 $ (90)