| Schedule of Components of Accumulated Other Comprehensive Loss |
Changes to accumulated other comprehensive loss by component are shown, net of taxes, in the following tables for the period indicated: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Dollars in thousands) | | Net change in
investment
securities
available-for-sale | | Net change
in investment securities
held-to-maturity | | Net
change in
defined
benefit
plan | | Net change in
fair value of
derivatives
used for cash
flow hedges | | Net change in equity method investments | | Total | | Balance, March 31, 2026 | | $ | (385,270) | | | $ | (60,542) | | | $ | (3,099) | | | $ | (4,882) | | | $ | (294) | | | $ | (454,087) | | | Other comprehensive loss | | (8,655) | | | — | | | — | | | — | | | (57) | | | (8,712) | | | Amounts reclassified from accumulated other comprehensive loss | | — | | | 2,904 | | | (88) | | | (6,241) | | | — | | | (3,425) | | | Net current-period other comprehensive (loss) income | | (8,655) | | | 2,904 | | | (88) | | | (6,241) | | | (57) | | | (12,137) | | | Balance, June 30, 2026 | | $ | (393,925) | | | $ | (57,638) | | | $ | (3,187) | | | $ | (11,123) | | | $ | (351) | | | $ | (466,224) | | | | | | | | | | | | | | | | Balance, March 31, 2025 | | $ | (467,752) | | | $ | (73,217) | | | $ | (3,876) | | | $ | (4,422) | | | $ | (207) | | | $ | (549,474) | | | Other comprehensive income (loss) | | 22,688 | | | — | | | 9 | | | — | | | (16) | | | 22,681 | | | Amounts reclassified from accumulated other comprehensive loss | | — | | | 3,267 | | | (70) | | | 1,440 | | | — | | | 4,637 | | | Net current-period other comprehensive income (loss) | | 22,688 | | | 3,267 | | | (61) | | | 1,440 | | | (16) | | | 27,318 | | | Balance, June 30, 2025 | | $ | (445,064) | | | $ | (69,950) | | | $ | (3,937) | | | $ | (2,982) | | | $ | (223) | | | $ | (522,156) | |
| | | | | | | | | | | | | | | | (Dollars in thousands) | | Net change in
investment
securities
available-for-sale | | Net change
in investment securities
held-to-maturity | | Net
change in
defined
benefit
plan | | Net change in
fair value of
derivatives
used for cash
flow hedges | | Net change in equity method investments | | Total | | Balance, December 31, 2025 | | $ | (376,545) | | | $ | (63,409) | | | $ | (2,524) | | | $ | (2,790) | | | $ | (279) | | | $ | (445,547) | | | Other comprehensive (loss) income | | (17,380) | | | — | | | (488) | | | — | | | (72) | | | (17,940) | | | Amounts reclassified from accumulated other comprehensive loss | | — | | | 5,771 | | | (175) | | | (8,333) | | | — | | | (2,737) | | | Net current-period other comprehensive (loss) income | | (17,380) | | | 5,771 | | | (663) | | | (8,333) | | | (72) | | | (20,677) | | | Balance, June 30, 2026 | | $ | (393,925) | | | $ | (57,638) | | | $ | (3,187) | | | $ | (11,123) | | | $ | (351) | | | $ | (466,224) | | | | | | | | | | | | | | | | Balance, December 31, 2024 | | $ | (537,789) | | | $ | (76,405) | | | $ | (3,815) | | | $ | (7,297) | | | $ | 429 | | | $ | (624,877) | | | Other comprehensive income (loss) | | 92,725 | | | — | | | 17 | | | — | | | (652) | | | 92,090 | | | Amounts reclassified from accumulated other comprehensive loss | | — | | | 6,455 | | | (139) | | | 4,315 | | | — | | | 10,631 | | | Net current-period other comprehensive income (loss) | | 92,725 | | | 6,455 | | | (122) | | | 4,315 | | | (652) | | | 102,721 | | | Balance, June 30, 2025 | | $ | (445,064) | | | $ | (69,950) | | | $ | (3,937) | | | $ | (2,982) | | | $ | (223) | | | $ | (522,156) | | | |
|
| Schedule of Components of Other Comprehensive Income (Loss) |
The unaudited Consolidated Statements of Income were impacted by components of other comprehensive income (loss) as shown in the tables below: | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Affected line item in unaudited Consolidated Statements of Income | | (Dollars in thousands) | | 2026 | | 2025 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net unrealized holding losses on securities transferred between available-for-sale and held-to-maturity: | | | | | | | | Amortization of net unrealized losses to income during the period | | $ | 3,821 | | | $ | 4,299 | | | Net interest income | | Income taxes | | (917) | | | (1,032) | | | Income tax provision | | Net of tax | | 2,904 | | | 3,267 | | | | | Amortization of defined benefit pension plan-related items: | | | | | | | Prior service credits | | (14) | | | (19) | | | | | | | | | | | | Actuarial gains | | (102) | | | (73) | | | | | Total before tax | | (116) | | | (92) | | | Salaries, benefits and other compensation | | Income taxes | | 28 | | | 22 | | | Income tax provision | | Net of tax | | (88) | | | (70) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change in fair value of derivatives used for cash flow hedges: | | | | | | | | Net change in fair value during the period | | (8,212) | | | 1,895 | | | Net interest income | | Income taxes | | 1,971 | | | (455) | | | Income tax provision | | Net of tax | | (6,241) | | | 1,440 | | | | | Total reclassifications | | $ | (3,425) | | | $ | 4,637 | | | | | | | | | | | | | Six Months Ended June 30, | | Affected line item in unaudited Consolidated Statements of Income | | | 2026 | | 2025 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net unrealized holding losses on securities transferred between available-for-sale and held-to-maturity: | | | | | | | | Amortization of net unrealized losses to income during the period | | $ | 7,593 | | | $ | 8,494 | | | Net interest income | | Income taxes | | (1,822) | | | (2,039) | | | Income tax provision | | Net of tax | | 5,771 | | | 6,455 | | | | | Amortization of defined benefit pension plan-related items: | | | | | | | Prior service credits | | (28) | | | (38) | | | | | | | | | | | | Actuarial gains | | (203) | | | (145) | | | | | Total before tax | | (231) | | | (183) | | | Salaries, benefits and other compensation | | Income taxes | | 56 | | | 44 | | | Income tax provision | | Net of tax | | (175) | | | (139) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change in fair value of derivatives used for cash flow hedges: | | | | | | | | Net change in fair value during the period | | (10,964) | | | 5,678 | | | Net interest income | | Income taxes | | 2,631 | | | (1,363) | | | Income tax provision | | Net of tax | | (8,333) | | | 4,315 | | | | | Total reclassifications | | $ | (2,737) | | | $ | 10,631 | | | |
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