Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Unaudited) (Details Textual)

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Selected Quarterly Financial Data (Unaudited) (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sep. 30, 2012
South Edge guarantee [Member]
Selected Quarterly Financial Information [Line Items]          
Legal reserves $ 16,067 $ 16,463 $ 16,067   $ 8,700
Income tax expense (benefit) 8,400 53,208 (76,309) 730  
Deferred tax asset valuation reversal $ (79,900) $ 8,666 $ 77,974 $ 0