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v3.25.1

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | $ 1,836,683 | $ 1,638,394
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity | 1,169 | 1,206
Income tax effect | (307) | (306)
Other comprehensive income (loss), net of income tax effect | 28,919 | 4,264
Ending balance | 1,864,560 | 1,691,617
Accumulated Other Comprehensive Income (Loss) |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | (96,560) | (136,569)
Other comprehensive income (loss), net of income tax effect | 28,919 | 4,264
Ending balance | (67,641) | (132,305)
Unrealized Gains (Losses) on Available for Sale Securities |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Unrealized gains (losses) arising during period, before tax | (13,249) | 4,480
Income tax effect | 3,484 | (1,138)
Other comprehensive income (loss) before reclassifications | (9,765) | 3,342
Reclassification adjustments for (gains) losses included in net income, before tax | 51,319 | 30
Income tax effect | (13,497) | (8)
Amounts reclassified from accumulated other comprehensive income (loss) to net income | 37,822 | 22
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity | 1,169 | 1,206
Income tax effect | (307) | (306)
Amortization of unrealized loss on securities transferred from available for sale to held to maturity | 862 | 900
Other comprehensive income (loss), net of income tax effect | $ 28,919 | $ 4,264

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- Definition Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A + Details
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- Definition Amount, after tax, of adjustment from accumulated other comprehensive income (loss) for amortization of gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from transfer to investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 10B -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481889/320-10-35-10B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A + Details
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