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Commitments and Contingencies (Changes To Anticipated Loan Losses) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Loss Contingency Accrual [Roll Forward]    
Liabilities, beginning of period $ 46,381 $ 58,222
Reserves provided (released), net 866 58
Payments (154) (54)
Liabilities, end of period $ 47,093 $ 58,226