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v3.25.2

Accumulated Other Comprehensive (Loss) Income - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning Balance | $ 3,274,321 | $ 2,757,679 | $ 3,197,325 | $ 2,760,139
OCI before reclassifications | (5,313) | (11,943) | 6,220 | (24,311)
Amounts reclassified from AOCI | 3,849 | 19,474 | 7,260 | 23,267
Ending Balance | 3,329,246 | 3,101,609 | 3,329,246 | 3,101,609
Unrealized Gains (Losses) on Investment Securities |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning Balance | (264,890) | (290,140) | (275,989) | (274,862)
OCI before reclassifications | (5,357) | (14,199) | 4,412 | (30,864)
Amounts reclassified from AOCI | 0 | 15,688 | 2 | 15,688
Ending Balance | (268,905) | (287,248) | (268,905) | (287,248)
Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning Balance | (10,773) | (26,587) | (16,052) | (34,783)
OCI before reclassifications | 44 | 2,256 | 1,808 | 6,553
Amounts reclassified from AOCI | 3,955 | 3,891 | 7,470 | 7,790
Ending Balance | (6,774) | (20,440) | (6,774) | (20,440)
Unrecognized Pension and Postretirement Plan Income (Costs) |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning Balance | 4,116 | (2,741) | 4,222 | (2,635)
OCI before reclassifications | 0 | 0 | 0 | 0
Amounts reclassified from AOCI | (106) | (105) | (212) | (211)
Ending Balance | 4,010 | (2,846) | 4,010 | (2,846)
Total |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning Balance | (271,547) | (319,468) | (287,819) | (312,280)
Ending Balance | (271,669) | (310,534) | (271,669) | (310,534)
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Amounts reclassified from AOCI | 1,342 | 1,403 | 2,670 | 2,790
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Investment Securities |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Amounts reclassified from AOCI | 1,342 | 1,403 | 2,670 | 2,790
Reclassification out of Accumulated Other Comprehensive Income | Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Amounts reclassified from AOCI | 0 | 0 | 0 | 0
Reclassification out of Accumulated Other Comprehensive Income | Unrecognized Pension and Postretirement Plan Income (Costs) |  |  |  |
Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Amounts reclassified from AOCI | $ 0 | $ 0 | $ 0 | $ 0

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