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v3.23.1

Comprehensive Income (Components of Comprehensive Income-Gross and Net of Tax) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Net income, Gross | $ 114,759 | $ 69,890
Unrealized holding gains (losses) during the period, Gross | 65,925 | (261,832)
Unrealized gains (losses) on securities with credit loss recognized in earnings; Gross | 22,431 | (86,621)
Amounts reclassified into net income: HTM securities, Gross |  | 1
Amounts reclassified into net income: net realized (gains) losses on disposals and intent-to-sell AFS securities, Gross | 6,104 | 15,991
Amounts reclassified into net income: Credit loss (benefit) expense, gross | (9,529) | 22,052
Total unrealized gains (losses) on investment securities, Gross | 84,931 | (310,409)
Amount reclassified into net income: Net actuarial (gain) loss, Gross | 757 | 417
Total defined benefit pension and post-retirement benefit plans, Gross | 757 | 417
Other comprehensive income (loss), Gross | 85,688 | (309,992)
Comprehensive income (loss) before tax | 200,447 | (240,102)
Net income, Tax | 22,185 | 13,560
Unrealized holding gains (losses) during the period, Tax | 13,846 | (54,984)
Unrealized gains (losses) on securities with credit loss recognized in earnings; Tax | 4,710 | (18,191)
Amounts reclassified into net income: HTM securities, Tax |  | 0
Amounts reclassified into net income: net realized (gains) losses on disposals and intent-to-sell AFS securities, tax | 1,282 | 3,358
Amounts reclassified into net income: Credit loss (benefit) expense, Tax | (2,002) | 4,631
Total unrealized gains (losses) on investment securities, Tax | 17,836 | (65,186)
Amount reclassified into net income: Net actuarial (gain) loss, Tax | 159 | 88
Total defined benefit pension and post-retirement benefit plans, Tax | 159 | 88
Other comprehensive (loss) income, Tax | 17,995 | (65,098)
Comprehensive income (loss), Tax | 40,180 | (51,538)
Net income | 92,574 | 56,330
Unrealized holding gains (losses) during period, net | 52,079 | (206,848)
Unrealized gains (losses) on securities with credit loss recognized in earnings, net | 17,721 | (68,430)
Amounts reclassified into net income: HTM Securities, net | 0 | 1
Amounts reclassified into net income: net realized (gains) losses on disposals and intent-to-sell AFS securities, net | 4,822 | 12,633
Amounts reclassified into net income: Credit loss (benefit) expense, net | (7,527) | 17,421
Total Unrealized Gains (Losses) on Investment Securities, Net | 67,095 | (245,223)
Amount reclassified into net income: Net actuarial (gain) loss, Net | 598 | 329
Total defined benefit pension and post-retirement plans, Net | 598 | 329
Other Comprehensive income (loss) | 67,693 | (244,894)
Comprehensive Income (Loss), Net | $ (160,267) | $ 188,564

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