Other Comprehensive Income (Loss) (Details 1) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
|
| Balances at Beginning |
|
|
|
$ 549,405
|
$ 516,466
|
| Net current-period other comprehensive income |
|
$ 2,060
|
$ 5,074
|
3,485
|
17,734
|
| Balances at Ending |
|
576,915
|
554,435
|
576,915
|
554,435
|
| Available-for-Sale Securities |
|
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
|
| Balances at Beginning |
|
(6,718)
|
9,692
|
(7,915)
|
(2,744)
|
| Other comprehensive income before reclassifications |
|
1,831
|
5,018
|
3,028
|
17,593
|
| Amounts reclassified from accumulated other comprehensive (loss) income |
|
0
|
(144)
|
0
|
(283)
|
| Net current-period other comprehensive income |
|
1,831
|
4,874
|
3,028
|
17,310
|
| Balances at Ending |
|
(4,887)
|
14,566
|
(4,887)
|
14,566
|
| Employee Benefit Plans |
|
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
|
| Balances at Beginning |
|
(28,966)
|
(28,033)
|
(29,194)
|
(28,257)
|
| Other comprehensive income before reclassifications |
|
0
|
0
|
0
|
0
|
| Amounts reclassified from accumulated other comprehensive (loss) income |
[1] |
229
|
200
|
457
|
424
|
| Net current-period other comprehensive income |
|
229
|
200
|
457
|
424
|
| Balances at Ending |
|
(28,737)
|
(27,833)
|
(28,737)
|
(27,833)
|
| Accumulated Other Comprehensive (Loss) Income |
|
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
|
| Balances at Beginning |
|
(35,684)
|
(18,341)
|
(37,109)
|
(31,001)
|
| Other comprehensive income before reclassifications |
|
1,831
|
5,018
|
3,028
|
17,593
|
| Amounts reclassified from accumulated other comprehensive (loss) income |
|
229
|
56
|
457
|
141
|
| Net current-period other comprehensive income |
|
2,060
|
5,074
|
3,485
|
17,734
|
| Balances at Ending |
|
$ (33,624)
|
$ (13,267)
|
$ (33,624)
|
$ (13,267)
|
|
|