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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 | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | $ 6,600,537 | $ 5,436,400 | $ 6,344,297 | $ 5,399,526
Other comprehensive income (loss) during the period, net of tax, before reclassifications | 40,108 | (41,250) | 133,961 | (179,725)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 3,682 | 14,210 | 8,157 | 28,805
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 | (8) | (10) | (16) | (47)
Net other comprehensive income (loss) during the period, net of tax | 43,782 | (27,050) | 142,102 | (150,967)
Ending balance | 7,225,696 | 5,536,628 | 7,225,696 | 5,536,628
Total Accumulated Other Comprehensive (Loss) Income |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (410,015) | (485,148) | (508,335) | (361,231)
Ending balance | (366,233) | (512,198) | (366,233) | (512,198)
Accumulated Unrealized (Losses) Gains on Securities |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (373,994) | (408,002) | (429,580) | (350,697)
Other comprehensive income (loss) during the period, net of tax, before reclassifications | 3,970 | (15,275) | 59,341 | (72,562)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 64 | (885) | 287 | (866)
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 | (8) | (10) | (16) | (47)
Net other comprehensive income (loss) during the period, net of tax | 4,026 | (16,170) | 59,612 | (73,475)
Ending balance | (369,968) | (424,172) | (369,968) | (424,172)
Accumulated Unrealized Gains (Losses) on Derivative Instruments |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | 31,747 | (28,329) | (11,227) | 32,049
Other comprehensive income (loss) during the period, net of tax, before reclassifications | 18,555 | (23,070) | 57,277 | (98,024)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax | 3,618 | 15,095 | 7,870 | 29,671
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 income (loss) during the period, net of tax | 22,173 | (7,975) | 65,147 | (68,353)
Ending balance | 53,920 | (36,304) | 53,920 | (36,304)
Accumulated Foreign Currency Translation Adjustments |  |  |  |
Activity Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Beginning balance | (67,768) | (48,817) | (67,528) | (42,583)
Other comprehensive income (loss) during the period, net of tax, before reclassifications | 17,583 | (2,905) | 17,343 | (9,139)
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 income (loss) during the period, net of tax | 17,583 | (2,905) | 17,343 | (9,139)
Ending balance | $ (50,185) | $ (51,722) | $ (50,185) | $ (51,722)

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