Annual report pursuant to Section 13 and 15(d)

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

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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 Expense (Benefit) Components [Line Items]                      
Current Federal Tax Expense (Benefit)                 $ 808 $ (4,586) $ 4,731
Current State and Local Tax Expense (Benefit)                 5 3 0
Current Income Tax Expense (Benefit)                 813 (4,583) 4,731
Deferred Income Tax Expense (Benefit)                 83,598 (37,636) (5,837)
Income Tax Expense (Benefit), Continuing Operations $ 6,602 $ 23,726 $ 49,119 $ 4,964 $ (10,203) $ (7,834) $ (16,605) $ (7,577) $ 84,411 $ (42,219) $ (1,106)