Derivative and Hedged Item (Details) - Net Interest - Designated as Hedging Instrument - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
| Derivative Instruments Gain Loss [Line Items] | ||||
| Gain (loss) on swap | $ (402) | $ 174 | $ (164) | $ (203) |
| Gain (loss) on borrowing | 398 | (75) | 174 | 253 |
| Hedge ineffectiveness | $ (4) | $ 99 | $ 10 | $ 50 |