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Quarterly Results (Unaudited) (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Payments for Legal Settlements   $ (5,700) $ (26,900)     $ (32,600)    
Litigation Settlement, Expense           20,000   $ 41,200
Gains (Losses) on Extinguishment of Debt           0 $ 8,584 26,930
Adjustment to self insurance reserves $ (29,600)     $ (15,200) $ 84,500 (62,200) 69,300  
Loan origination release 11,800         11,800    
loan origination reduction       $ 18,600     18,600  
Loss Contingency Accrual, Period Increase (Decrease)             (18,600)  
Valuation allowance adjustment $ 49,600           (45,600) 2,100,000
Reserves provided           (11,433) (18,604) 0
Home Office Relocation [Member]                
Costs associated with the relocation of corporate headquarters           4,400 16,300 15,400
Home Office Relocation [Member] | Other Restructuring [Member]                
Costs associated with the relocation of corporate headquarters           $ 2,300 $ 8,700 $ 400