Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | Period [Axis] |
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2016-01-01 - 2016-12-31 |
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Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | |
Schedule of components of other comprehensive income (loss) | The following table presents the components of other comprehensive income (loss) for the years ended December 31, 2016, 2015 and 2014, by component:
| | | | | | | | | | | | | | Before Tax | | Tax Effect | | Net of Tax | | (Dollars in thousands) | Year ended December 31, 2016 | |
| | |
| | |
| Net unrealized losses on investment securities: | |
| | |
| | |
| Net unrealized losses arising during the period | $ | (7,397 | ) | | $ | (2,945 | ) | | $ | (4,452 | ) | Less: Reclassification adjustment for losses realized in net income | — |
| | — |
| | — |
| Net unrealized losses on investment securities | (7,397 | ) | | (2,945 | ) | | (4,452 | ) | | | | | | | Defined benefit plans: | |
| | |
| | |
| Net actuarial losses arising during the period | (963 | ) | | (385 | ) | | (578 | ) | Amortization of net actuarial losses | 1,599 |
| | 634 |
| | 965 |
| Amortization of net transition obligation | 17 |
| | 6 |
| | 11 |
| Amortization of prior service cost | 18 |
| | 7 |
| | 11 |
| Settlement | 3,847 |
| | 1,528 |
| | 2,319 |
| Defined benefit plans, net | 4,518 |
| | 1,790 |
| | 2,728 |
| | | | | | | Other comprehensive income | $ | (2,879 | ) | | $ | (1,155 | ) | | $ | (1,724 | ) |
| | | | | | | | | | | | | | Before Tax | | Tax Effect | | Net of Tax | | (Dollars in thousands) | Year ended December 31, 2014 | |
| | |
| | |
| Net unrealized gains on investment securities: | |
| | |
| | |
| Net unrealized gains arising during the period | $ | 36,780 |
| | $ | 14,714 |
| | $ | 22,066 |
| Less: Reclassification adjustment for gains realized in net income | 1,071 |
| | 426 |
| | 645 |
| Net unrealized gains on investment securities | 37,851 |
| | 15,140 |
| | 22,711 |
| | | | | | | Defined benefit plans: | |
| | |
| | |
| Net actuarial losses arising during the period | (7,409 | ) | | (3,052 | ) | | (4,357 | ) | Amortization of net actuarial losses | 1,070 |
| | 441 |
| | 629 |
| Amortization of net transition obligation | 17 |
| | 7 |
| | 10 |
| Amortization of prior service cost | 18 |
| | 7 |
| | 11 |
| Defined benefit plans, net | (6,304 | ) | | (2,597 | ) | | (3,707 | ) | | | | | | | Other comprehensive loss | $ | 31,547 |
| | $ | 12,543 |
| | $ | 19,004 |
|
| | | | | | | | | | | | | | Before Tax | | Tax Effect | | Net of Tax | | (Dollars in thousands) | Year ended December 31, 2015 | |
| | |
| | |
| Net unrealized losses on investment securities: | |
| | |
| | |
| Net unrealized losses arising during the period | $ | (9,184 | ) | | $ | (3,655 | ) | | $ | (5,529 | ) | Less: Reclassification adjustment for losses realized in net income | 1,866 |
| | 742 |
| | 1,124 |
| Net unrealized losses on investment securities | (7,318 | ) | | (2,913 | ) | | (4,405 | ) | | | | | | | Defined benefit plans: | |
| | |
| | |
| Net actuarial gains arising during the period | 687 |
| | 274 |
| | 413 |
| Amortization of net actuarial losses | 1,688 |
| | 672 |
| | 1,016 |
| Amortization of net transition obligation | 16 |
| | 7 |
| | 9 |
| Amortization of prior service cost | 18 |
| | 7 |
| | 11 |
| Defined benefit plans, net | 2,409 |
| | 960 |
| | 1,449 |
| | | | | | | Other comprehensive income | $ | (4,909 | ) | | $ | (1,953 | ) | | $ | (2,956 | ) |
|
Schedule of changes in each component of AOCI, net of tax | The following table presents the changes in each component of AOCI, net of tax, for the years ended December 31, 2016, 2015 and 2014: | | | | | | | | | | | | | | Investment Securities | | Defined Benefit Plans | | Accumulated Other Comprehensive Income (Loss) | | (Dollars in thousands) | Year ended December 31, 2016 | |
| | |
| | |
| Balance at beginning of period | $ | 9,181 |
| | $ | (8,978 | ) | | $ | 203 |
| | | | | | | Other comprehensive income (loss) before reclassifications | (4,452 | ) | | (578 | ) | | (5,030 | ) | Amounts reclassified from AOCI | — |
| | 3,306 |
| | 3,306 |
| Total other comprehensive income (loss) | (4,452 | ) | | 2,728 |
| | (1,724 | ) | Balance at end of period | $ | 4,729 |
| | $ | (6,250 | ) | | $ | (1,521 | ) |
| | | | | | | | | | | | | | Investment Securities | | Defined Benefit Plans | | Accumulated Other Comprehensive Income (Loss) | | (Dollars in thousands) | Year ended December 31, 2015 | |
| | |
| | |
| Balance at beginning of period | $ | 13,586 |
| | $ | (10,427 | ) | | $ | 3,159 |
| | | | | | | Other comprehensive income (loss) before reclassifications | (5,529 | ) | | 413 |
| | (5,116 | ) | Amounts reclassified from AOCI | 1,124 |
| | 1,036 |
| | 2,160 |
| Total other comprehensive income (loss) | (4,405 | ) | | 1,449 |
| | (2,956 | ) | Balance at end of period | $ | 9,181 |
| | $ | (8,978 | ) | | $ | 203 |
|
| | | | | | | | | | | | | | Investment Securities | | Defined Benefit Plans | | Accumulated Other Comprehensive Income (Loss) | | (Dollars in thousands) | Year ended December 31, 2014 | |
| | |
| | |
| Balance at beginning of period | $ | (9,125 | ) | | $ | (6,720 | ) | | $ | (15,845 | ) | | | | | | | Other comprehensive income (loss) before reclassifications | 22,066 |
| | (4,357 | ) | | 17,709 |
| Amounts reclassified from AOCI | 645 |
| | 650 |
| | 1,295 |
| Total other comprehensive loss | 22,711 |
| | (3,707 | ) | | 19,004 |
| Balance at end of period | $ | 13,586 |
| | $ | (10,427 | ) | | $ | 3,159 |
|
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Schedule of amounts reclassified out of each component of AOCI | The following table presents the amounts reclassified out of each component of AOCI for the years ended December 31, 2016, 2015 and 2014: | | | | | | | | | | | | | | | | Amount Reclassified from AOCI | | Affected Line Item in the | Details about AOCI Components (Dollars in Thousands) | Year ended December 31, | | Statement Where Net | 2016 | | 2015 | | 2014 | | Income is Presented | | | | | | | | | Sale of investment securities available for sale | $ | — |
| | $ | (1,866 | ) | | $ | (1,071 | ) | | Investment securities gains (losses) | | — |
| | 742 |
| | 426 |
| | Tax benefit | | $ | — |
| | $ | (1,124 | ) | | $ | (645 | ) | | Net of tax | | | | | | | | | Defined benefit plan items: | |
| | |
| | |
| | | Amortization of net actuarial losses | $ | (1,599 | ) | | $ | (1,688 | ) | | $ | (1,070 | ) | | (1) | Amortization of net transition obligation | (17 | ) | | (16 | ) | | (17 | ) | | (1) | Amortization of prior service cost | (18 | ) | | (18 | ) | | (18 | ) | | (1) | Settlement | (3,847 | ) | | — |
| | — |
| | (1) | | (5,481 | ) | | (1,722 | ) | | (1,105 | ) | | Total before tax | | 2,175 |
| | 686 |
| | 455 |
| | Tax benefit | | $ | (3,306 | ) | | $ | (1,036 | ) | | $ | (650 | ) | | Net of tax | | | | | | | | | Total reclassifications for the period | $ | (3,306 | ) | | $ | (2,160 | ) | | $ | (1,295 | ) | | Net of tax |
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