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Shareholders' Equity - Schedule of Reclassification from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Gains (losses) on investment securities, net | $ 8,323 | $ (2,602) | $ 1,525
Income before taxes | 1,118,407 | 947,089 | 845,081
Income tax benefit | (294,563) | (252,044) | (222,455)
Interest and fees on loans | 3,220,993 | 3,043,354 | 2,540,952
Interest on deposits | 1,341,727 | 1,343,642 | 906,470
Interest on other borrowings | 26,592 | 34,480 | 35,280
Net income | 823,844 | 695,045 | 622,626
Reclassification out of Accumulated Other Comprehensive Income | Accumulated unrealized gains on available-for-sale securities |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Gains (losses) on investment securities, net | 159 | 1,236 | 951
Income before taxes | 159 | 1,236 | 951
Income tax benefit | (41) | (321) | (252)
Net income | 118 | 915 | 699
Reclassification out of Accumulated Other Comprehensive Income | Accumulated unrealized gains (losses) on derivative instruments |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Income before taxes | (16,311) | (72,674) | (55,846)
Income tax benefit | 4,242 | 19,078 | 14,844
Interest and fees on loans | 29,611 | 87,306 | 74,616
Interest on deposits | (13,300) | (14,632) | (19,559)
Interest on other borrowings | 0 | 0 | 789
Net income | $ (12,069) | $ (53,596) | $ (41,002)

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