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Fair Value Measurements (Details 2) - Recurring - Significant Unobservable Inputs (Level 3) - Mortgage servicing rights
3 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Quantitative Information    
Weighted average constant prepayment rate 12.16% 10.66%
Weighted average note rate (as a percent) 3.90% 3.92%
Weighted average discount rate 9.19% 9.34%
Weighted average expected life (in years) 5 years 1 month 6 days 5 years 8 months 12 days