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Fair Value Measurements (Details 1) - Recurring - Significant Unobservable Inputs (Level 3) - Mortgage servicing rights - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Fair value of assets        
Balance at beginning of period $ 2,511 $ 2,727 $ 2,847 $ 2,762
Total gains or losses (realized/unrealized): Included in earnings (237) (29) (690) (291)
Total gains or losses (realized/unrealized): Included in other comprehensive income 0 0 0 0
Purchases 0 0 0 0
Sales 0 0 0 0
Issues 96 76 213 303
Settlements 0 0 0 0
Balance at end of period $ 2,370 $ 2,774 $ 2,370 $ 2,774