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Other Comprehensive Income (Loss) - Summary of Components of OCI (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Equity [Abstract] |  |  |
Net change in fair value recorded in accumulated OCI, Before-tax | $ (498,759) | $ (56,075) | $ 32,849
Net change in fair value recorded in accumulated OCI, Tax effect | 147,451 | 16,578 | (9,711)
Net change in fair value recorded in accumulated OCI, After-tax | (351,308) | (39,497) | 23,138
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, Before-tax | 681 | 256 | (572)
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, Tax effect | (201) | (76) | 169
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax | 480 | 180 | (403)
Net realized gain reclassified into earnings Before-tax | 0 | 0 | 0
Net realized gain reclassified into earnings Tax effect | 0 | 0 | 0
Net realized gain reclassified into earnings After-tax | 0 | 0 | 0
Net change, Before-tax | (498,078) | (55,819) | 32,277
Net change, Tax effect | 147,250 | 16,502 | (9,542)
Net change After-tax | $ (350,828) | $ (39,317) | $ 22,735

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- Definition Amount, before tax and after adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580 + Details
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