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Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Components of Other Comprehensive Income or Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | $ 5,041,912 | $ 4,727,623 | $ 4,796,838 | $ 4,498,688
Other comprehensive loss during the period, net of tax, before reclassifications | (181,970) | (211,652) | (241,175) | (463,203)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 13,360 | (4,007) | 26,163 | 478
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (23) | (32) | (75) | (95)
Net other comprehensive loss during the period, net of tax | (168,633) | (215,691) | (215,087) | (462,820)
Ending balance | 5,015,613 | 4,637,980 | 5,015,613 | 4,637,980
Accumulated Unrealized (Losses) Gains on Securities |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (385,925) | (264,790) | (386,057) | 8,724
Other comprehensive loss during the period, net of tax, before reclassifications | (130,622) | (141,758) | (130,028) | (415,026)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | (118) | (9) | (528) | (192)
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | (23) | (32) | (75) | (95)
Net other comprehensive loss during the period, net of tax | (130,763) | (141,799) | (130,631) | (415,313)
Ending balance | (516,688) | (406,589) | (516,688) | (406,589)
Accumulated Unrealized Gains (Losses) on Derivative Instruments |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (45,259) | 57,801 | 7,381 | 27,111
Other comprehensive loss during the period, net of tax, before reclassifications | (45,078) | (52,072) | (110,931) | (26,050)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 13,478 | (3,998) | 26,691 | 670
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | 0 | 0 | 0 | 0
Net other comprehensive loss during the period, net of tax | (31,600) | (56,070) | (84,240) | (25,380)
Ending balance | (76,859) | 1,731 | (76,859) | 1,731
Accumulated Foreign Currency Translation Adjustments |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (42,906) | (36,048) | (48,960) | (31,743)
Other comprehensive loss during the period, net of tax, before reclassifications | (6,270) | (17,822) | (216) | (22,127)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 0 | 0 | 0 | 0
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax | 0 | 0 | 0 | 0
Net other comprehensive loss during the period, net of tax | (6,270) | (17,822) | (216) | (22,127)
Ending balance | (49,176) | (53,870) | (49,176) | (53,870)
Accumulated other comprehensive income (loss) |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (474,090) | (243,037) | (427,636) | 4,092
Ending balance | $ (642,723) | $ (458,728) | $ (642,723) | $ (458,728)

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