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Accumulated Other Comprehensive Income | 3 Months Ended
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Mar. 31, 2026
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income The table below shows the activity and accumulated balances for components of other comprehensive income. Information about unrealized gains and losses on securities can be found in Note 4, and information about unrealized gains and losses on cash flow hedge derivatives is located in Note 12.
|  |  | Unrealized Gains (Losses) on Securities (1) | Pension Loss | Unrealized Gains (Losses) on Cash Flow Hedge Derivatives (2) | Total Accumulated Other Comprehensive Income (Loss)
(In thousands) |  |
Balance January 1, 2026 |  |  | $ | (485,071) |  | $ | (9,623) |  | $ | (12,996) |  | $ | (507,690) |
Other comprehensive income (loss) before reclassifications to current earnings |  |  | (40,733) |  | — |  | (1,666) |  | (42,399) |
Amounts reclassified to current earnings from accumulated other comprehensive income |  |  | — |  | 138 |  | (274) |  | (136) |
Current period other comprehensive income (loss), before tax |  |  | (40,733) |  | 138 |  | (1,940) |  | (42,535) |
Income tax (expense) benefit |  |  | 10,183 |  | (35) |  | 485 |  | 10,633 |
Current period other comprehensive income (loss), net of tax |  |  | (30,550) |  | 103 |  | (1,455) |  | (31,902) |
Balance March 31, 2026 |  |  | $ | (515,621) |  | $ | (9,520) |  | $ | (14,451) |  | $ | (539,592) |
Balance January 1, 2025 |  |  | $ | (742,926) |  | $ | (12,059) |  | $ | (3,926) |  | $ | (758,911) |
Other comprehensive income (loss) before reclassifications to current earnings |  |  | 157,722 |  | — |  | 10,366 |  | 168,088 |
Amounts reclassified to current earnings from accumulated other comprehensive income |  |  | (4) |  | 229 |  | (2,533) |  | (2,308) |
Current period other comprehensive income (loss), before tax |  |  | 157,718 |  | 229 |  | 7,833 |  | 165,780 |
Income tax (expense) benefit |  |  | (39,430) |  | (57) |  | (1,958) |  | (41,445) |
Current period other comprehensive income (loss), net of tax |  |  | 118,288 |  | 172 |  | 5,875 |  | 124,335 |
Balance March 31, 2025 |  |  | $ | (624,638) |  | $ | (11,887) |  | $ | 1,949 |  | $ | (634,576) |
(1) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "investment securities gains (losses), net" in the consolidated statements of income. (2) The pre-tax amounts reclassified from accumulated other comprehensive income to current earnings are included in "interest and fees on loans" in the consolidated statements of income.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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