Comprehensive Income Other Comprehensive Income (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Schedule of Comprehensive Income [Line Items] |
|
|
|
| Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |
$ (1,208)
|
$ (2,961)
|
$ 3,500
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |
402
|
168
|
589
|
| Other Comprehensive Income (Loss), before Tax |
(1,329)
|
(4,547)
|
6,772
|
| Other Comprehensive Income (Loss), Tax |
523
|
1,754
|
(2,683)
|
| Other Comprehensive (Loss) Income |
(806)
|
(2,793)
|
4,089
|
| Accumulated Net Unrealized Investment Gain (Loss) [Member] |
|
|
|
| Schedule of Comprehensive Income [Line Items] |
|
|
|
| Other Comprehensive Income (Loss), before Reclassifications, before Tax |
(3,017)
|
356
|
(4,843)
|
| Other Comprehensive Income Loss Before Reclassifications Tax (Expense) Benefit |
1,185
|
(124)
|
1,918
|
| Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |
(1,832)
|
232
|
(2,925)
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |
(129)
|
(110)
|
(540)
|
| Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |
51
|
43
|
214
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |
(78)
|
(67)
|
(326)
|
| Other Comprehensive (Loss) Income |
(1,910)
|
165
|
(3,251)
|
| Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] |
|
|
|
| Schedule of Comprehensive Income [Line Items] |
|
|
|
| Other Comprehensive Income (Loss), before Reclassifications, before Tax |
1,395
|
(4,610)
|
10,640
|
| Other Comprehensive Income Loss Before Reclassifications Tax (Expense) Benefit |
(547)
|
1,764
|
(4,215)
|
| Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |
848
|
(2,846)
|
6,425
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |
846
|
474
|
1,513
|
| Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |
(332)
|
(186)
|
(599)
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |
514
|
288
|
914
|
| Other Comprehensive (Loss) Income |
1,362
|
(2,558)
|
7,339
|
| Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) [Member] |
|
|
|
| Schedule of Comprehensive Income [Line Items] |
|
|
|
| Other Comprehensive Income (Loss), before Reclassifications, before Tax |
(368)
|
|
0
|
| Other Comprehensive Income Loss Before Reclassifications Tax (Expense) Benefit |
144
|
|
0
|
| Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |
(224)
|
(347)
|
0
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |
(56)
|
(87)
|
2
|
| Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit |
22
|
34
|
(1)
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |
(34)
|
(53)
|
1
|
| Other Comprehensive (Loss) Income |
$ (258)
|
$ (400)
|
$ 1
|