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v3.25.2

Fair Value - Estimated fair value and related carrying amount, of the Company's financial instruments (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Financial assets: |  |  |
Trading securities | $ 95,306 |  | $ 102,932
Financial liabilities: |  |  |
Other derivative financial instruments (mortgage banking related) | (275,258) | $ 150,861 |
Carrying Amount |  |  |
Financial assets: |  |  |
Cash and cash equivalents | 3,464,106 |  | 1,392,067
Trading securities | 95,306 |  | 102,932
Investment securities | 8,431,345 |  | 6,798,876
Mortgage loans held for sale | 318,985 |  | 279,426
Loans, net of allowance for credit losses | 46,646,201 |  | 33,437,647
Accrued interest receivable | 227,556 |  | 163,402
Mortgage servicing rights | 85,836 |  | 89,795
SBA servicing asset | 5,801 |  | 6,028
Interest rate swap - non-designated hedge | 210,999 |  | 160,407
Other derivative financial instruments (mortgage banking related) | $ 3,899 |  | $ 1,083
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Derivative Asset, Noncurrent |  | Derivative Asset, Noncurrent
Financial liabilities: |  |  |
Noninterest-bearing | $ 13,719,030 |  | $ 10,192,117
Interest-bearing other than time deposits | 32,269,471 |  | 23,703,027
Time deposits | 7,708,460 |  | 4,165,722
Federal funds purchased and securities sold under agreements to repurchase | 630,558 |  | 514,912
Corporate and subordinated debentures | 1,099,705 |  | 391,534
Accrued interest payable | 52,130 |  | 40,739
Interest rate swap - non-designated hedge | 611,310 |  | 878,046
Other derivative financial instruments (mortgage banking related) | 974 |  | 1,809
Fair Value |  |  |
Financial assets: |  |  |
Cash and cash equivalents | 3,464,106 |  | 1,392,067
Trading securities | 95,306 |  | 102,932
Investment securities | 8,067,102 |  | 6,378,734
Mortgage loans held for sale | 319,939 |  | 281,662
Loans, net of allowance for credit losses | 46,339,114 |  | 32,448,618
Accrued interest receivable | 227,556 |  | 163,402
Mortgage servicing rights | 85,836 |  | 89,795
SBA servicing asset | 5,801 |  | 6,028
Interest rate swap - non-designated hedge | 210,999 |  | 160,407
Other derivative financial instruments (mortgage banking related) | 3,899 |  | 1,083
Financial liabilities: |  |  |
Noninterest-bearing | 13,719,030 |  | 10,192,117
Interest-bearing other than time deposits | 32,269,471 |  | 23,703,027
Time deposits | 7,683,701 |  | 4,145,687
Federal funds purchased and securities sold under agreements to repurchase | 630,558 |  | 514,912
Corporate and subordinated debentures | 1,104,781 |  | 377,616
Accrued interest payable | 52,130 |  | 40,739
Interest rate swap - non-designated hedge | 611,310 |  | 878,046
Other derivative financial instruments (mortgage banking related) | 974 |  | 1,809
Quoted Prices In Active Markets for Identical Assets (Level 1) |  |  |
Financial assets: |  |  |
Cash and cash equivalents | 3,464,106 |  | 1,392,067
Investment securities | 274,869 |  | 187,266
Significant Other Observable Inputs (Level 2) |  |  |
Financial assets: |  |  |
Trading securities | 95,306 |  | 102,932
Investment securities | 7,709,615 |  | 6,155,120
Mortgage loans held for sale | 319,939 |  | 281,662
Accrued interest receivable | 34,054 |  | 25,035
Interest rate swap - non-designated hedge | 210,999 |  | 160,407
Other derivative financial instruments (mortgage banking related) | 3,899 |  | 1,083
Financial liabilities: |  |  |
Noninterest-bearing | 13,719,030 |  | 10,192,117
Interest-bearing other than time deposits | 32,269,471 |  | 23,703,027
Time deposits | 7,683,701 |  | 4,145,687
Federal funds purchased and securities sold under agreements to repurchase | 630,558 |  | 514,912
Corporate and subordinated debentures | 1,104,781 |  | 377,616
Accrued interest payable | 52,130 |  | 40,739
Interest rate swap - non-designated hedge | 611,310 |  | 878,046
Other derivative financial instruments (mortgage banking related) | 974 |  | 1,809
Significant Unobservable Inputs (Level 3) |  |  |
Financial assets: |  |  |
Investment securities | 82,618 |  | 36,348
Loans, net of allowance for credit losses | 46,339,114 |  | 32,448,618
Accrued interest receivable | 193,502 |  | 138,367
Mortgage servicing rights | 85,836 |  | 89,795
SBA servicing asset | $ 5,801 |  | $ 6,028

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