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Servicing Assets (Narratives) (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Servicing Assets At Fair Value Line Items        
Servicing Asset at Fair Value, Amount $ 7,819,000 $ 12,164,000 $ 7,455,000 $ 13,992,000
Servicing fee $ 876,000 $ 1,800,000