Other Comprehensive Income (Loss) - Reclassified Out of Each Component of AOCI (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
| Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |
|
|
|
|
| Net gain on securities transactions |
$ 24,167
|
$ 27,842
|
$ 50,834
|
$ 54,071
|
| Tax expense |
(4,743)
|
(5,751)
|
(10,338)
|
(11,512)
|
| Other operating expense |
(12,126)
|
(12,435)
|
(23,049)
|
(23,043)
|
| Net of tax |
(19,392)
|
(22,059)
|
(40,432)
|
(42,495)
|
| Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Available-for-sale securities: |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |
|
|
|
|
| Net gain on securities transactions |
271
|
170
|
271
|
294
|
| Tax expense |
(67)
|
(42)
|
(67)
|
(72)
|
| Net of tax |
204
|
128
|
204
|
222
|
| Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Net retirement plan actuarial (gain) loss |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |
|
|
|
|
| Other operating expense |
(400)
|
(442)
|
(821)
|
(860)
|
| Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Net retirement plan prior service cost |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |
|
|
|
|
| Other operating expense |
(3)
|
(4)
|
(7)
|
(8)
|
| Amount Reclassified from Accumulated Other Comprehensive (Loss) Income | Employee Benefit Plans |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |
|
|
|
|
| Net gain on securities transactions |
(403)
|
(446)
|
(828)
|
(868)
|
| Tax expense |
99
|
109
|
203
|
213
|
| Net of tax |
$ 304
|
$ 337
|
$ 625
|
$ 655
|