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Fair Value Measurements (Details 2) - Recurring - Significant Unobservable Inputs (Level 3) - Mortgage servicing rights - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Fair value of assets        
Balance at beginning of period $ 2,727 $ 2,911 $ 2,762 $ 3,036
Total gains or losses (realized/unrealized) Included in earnings (29) (139) (291) (386)
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 76 95 303 217
Settlements 0 0 0 0
Balance at end of period $ 2,774 $ 2,867 $ 2,774 $ 2,867