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v3.22.2.2

Other Comprehensive Income (Loss) - Component of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Equity [Abstract] |  |  |  |
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Before Tax Amount | $ (829,324) | $ (80,668) | $ (2,376,642) | $ (209,779)
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Before Tax Amount | (174) | (237) | (572) | (741)
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Before Tax Amount | 0 | 0 | 0 | 0
Total securities available for sale and transferred securities, before tax amount | (829,498) | (80,905) | (2,377,214) | (210,520)
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit), before tax amount | 741 | 1,529 | 2,223 | 4,587
Total defined-benefit post-retirement benefit plans | 741 | 1,529 | 2,223 | 4,587
Total other comprehensive income (loss), before tax | (828,757) | (79,376) | (2,374,991) | (205,933)
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Tax Expense (Benefit) | (174,158) | (16,941) | (499,095) | (44,054)
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Tax Expense (Benefit) | (36) | (49) | (120) | (155)
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Tax Expense (Benefit) | 0 | 0 | 0 | 0
Total securities available for sale and transferred securities, Tax Expense (Benefit) | (174,194) | (16,990) | (499,215) | (44,209)
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit), Tax Expense (Benefit) | 156 | 321 | 467 | 963
Total defined-benefit post-retirement benefit plans, Tax Expense (Benefit) | 156 | 321 | 467 | 963
Total other comprehensive income (loss), Tax Expense (Benefit) | (174,038) | (16,669) | (498,748) | (43,246)
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Net of Tax | (655,166) | (63,727) | (1,877,547) | (165,725)
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Net of Tax | (138) | (188) | (452) | (586)
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Net of Tax | 0 | 0 | 0 | 0
Total securities available for sale and transferred securities, Net of Tax | (655,304) | (63,915) | (1,877,999) | (166,311)
Reclassification adjustment for net amortization of actuarial gain/lloss included in net income as a component of net periodic cost (benefit), Net of Tax | 585 | 1,208 | 1,756 | 3,624
Total defined-benefit post-retirement benefit plans, Net of Tax Amount | 585 | 1,208 | 1,756 | 3,624
Other comprehensive income (loss), net of tax | $ (654,719) | $ (62,707) | $ (1,876,243) | $ (162,687)

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