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Loans - Summary of loans (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
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Summary of Loans |  |  |  |
Total loans | $ 46,766,732 | $ 33,902,927 |  |
Less allowance for credit losses | (623,690) | (465,280) | $ (469,654) | $ (456,573)
Loans, net | 46,143,042 | 33,437,647 |  |
Deferred costs | 89,100 | 86,700 |  |
Unamortized Discounts | 457,100 | 36,900 |  |
Accrued interest receivable (AIR) | $ 182,500 | $ 133,000 |  |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other Assets. | Other Assets. |  |
Construction and land development |  |  |  |
Summary of Loans |  |  |  |
Total loans | $ 3,497,909 | $ 2,184,327 |  |
Consumer Owner-Occupied |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,168,477 | 7,144,885 |  |
Home equity loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 1,670,475 | 1,570,084 |  |
Commercial and industrial |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,106,484 | 6,222,876 |  |
Other income producing property |  |  |  |
Summary of Loans |  |  |  |
Total loans | 1,286,033 | 607,750 |  |
Consumer |  |  |  |
Summary of Loans |  |  |  |
Total loans | 1,075,872 | 1,062,599 |  |
Other loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,280 | 10,298 |  |
Commercial loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 35,480,112 | 23,705,601 |  |
Commercial loans | Construction and land development |  |  |  |
Summary of Loans |  |  |  |
Total loans | 3,154,389 | 1,798,096 |  |
Commercial loans | Commercial non-owner occupied |  |  |  |
Summary of Loans |  |  |  |
Total loans | 15,536,086 | 9,383,732 |  |
Commercial loans | Consumer Owner-Occupied |  |  |  |
Summary of Loans |  |  |  |
Total loans | 70,014 | 66,910 |  |
Commercial loans | Commercial and industrial |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,106,484 | 6,222,876 |  |
Commercial loans | Other income producing property |  |  |  |
Summary of Loans |  |  |  |
Total loans | 1,187,743 | 507,313 |  |
Commercial loans | Other loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,280 | 10,298 |  |
Consumer loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 11,286,620 | 10,197,326 |  |
Consumer loans | Construction and land development |  |  |  |
Summary of Loans |  |  |  |
Total loans | 343,520 | 386,231 |  |
Consumer loans | Consumer Owner-Occupied |  |  |  |
Summary of Loans |  |  |  |
Total loans | 8,098,463 | 7,077,975 |  |
Consumer loans | Home equity loans |  |  |  |
Summary of Loans |  |  |  |
Total loans | 1,670,475 | 1,570,084 |  |
Consumer loans | Other income producing property |  |  |  |
Summary of Loans |  |  |  |
Total loans | 98,290 | 100,437 |  |
Consumer loans | Consumer |  |  |  |
Summary of Loans |  |  |  |
Total loans | $ 1,075,872 | $ 1,062,599 |  |

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