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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Schedule of significant unobservable inputs to measure fair value  
Direct annual servicing cost per loan $ 60
Direct annual servicing cost per loan in process of foreclosure $ 600
Weighted average prepayment speed: CPR 23.11%
Weighted average prepayment speed: PSA 478.10%
Weighted average cash flow discount rate 7.91%
Asset reinvestment rate 4.00%
Short-term cost of funds 0.25%
Escrow inflation adjustment 1.00%
Servicing cost inflation adjustment 1.00%