| Schedule of assets and liabilities measured at fair value |
Assets and liabilities measured at fair value are as follows: | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | (in thousands) | Level 1 | | Level 2 | | Level 3 | | December 31, 2025 | | | | | | | Available-for-sale debt securities:(1) | | | | | | | | | | | | | | | | | | | Residential mortgage-backed securities | $ | — | | | $ | 3,692,646 | | | $ | — | | | | | | | | | | | | | | Commercial mortgage-backed securities | — | | | 248,012 | | | — | | | CRT securities | — | | | — | | | 10,797 | | Equity securities(1) | 31,998 | | | 10,000 | | | — | | | Trading securities(1) | — | | | 3,924 | | | — | | | | | | | | Loans held for investment(2) | — | | | — | | | 20,844 | | | | | | | | Derivative assets(3) | — | | | 40,892 | | | — | | Securities sold not yet purchased(4) | 12,026 | | | — | | | — | | Derivative liabilities(3) | — | | | 24,458 | | | — | | Non-qualified deferred compensation plan liabilities(5) | 18,989 | | | — | | | — | | | December 31, 2024 | | | | | | | Available-for-sale debt securities:(1) | | | | | | | U.S. Treasury securities | $ | 277,285 | | | $ | — | | | $ | — | | | | | | | | | Residential mortgage-backed securities | — | | | 3,034,043 | | | — | | | | | | | | | | | | | | Commercial mortgage-backed securities | — | | | 201,432 | | | — | | | CRT securities | — | | | — | | | 11,926 | | Equity securities(1) | 59,235 | | | 16,026 | | | — | | | | | | | | Loans held for investment(2) | — | | | — | | | 35,318 | | Derivative assets(3) | — | | | 23,202 | | | — | | Securities sold not yet purchased(4) | 33,705 | | | — | | | — | | Derivative liabilities(3) | — | | | 57,906 | | | — | | Non-qualified deferred compensation plan liabilities(5) | 19,109 | | | — | | | — | |
(1)Available-for-sale debt securities, equity securities and trading securities are measured at fair value on a recurring basis, generally monthly. (2)Includes certain collateral-dependent loans held for investment for which a specific allocation of the allowance for credit losses is based upon the fair value of the loan’s underlying collateral. These loans held for investment are measured on a nonrecurring basis, generally annually or more often as warranted by market and economic conditions. (3)Derivative assets and liabilities are measured at fair value on a recurring basis, generally quarterly. (4)Securities sold not yet purchased are measured at fair value on a recurring basis, generally monthly. (5)Non-qualified deferred compensation plan liabilities represent the fair value of the obligation to the employee, which generally corresponds to the fair value of the invested assets, and are measured at fair value on a recurring basis, generally monthly. |
| Summary of the carrying amounts and estimated fair values of financial instruments |
A summary of the carrying amounts and estimated fair values of financial instruments is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Carrying Amount | | Estimated Fair Value | | (in thousands) | | Total | | Level 1 | | Level 2 | | Level 3 | | December 31, 2025 | | | | | | | | | | | Financial assets: | | | | | | | | | | | Cash and cash equivalents | $ | 2,099,118 | | | $ | 2,099,118 | | | $ | 2,099,118 | | | $ | — | | | $ | — | | | Available-for-sale debt securities | 3,951,455 | | | 3,951,455 | | | — | | | 3,940,658 | | | 10,797 | | | Held-to-maturity debt securities | 725,722 | | | 654,832 | | | — | | | 654,832 | | | — | | | Equity securities | 41,998 | | | 41,998 | | | 31,998 | | | 10,000 | | | — | | | Trading securities | 3,924 | | | 3,924 | | | — | | | 3,924 | | | — | | | Loans held for sale | 4,361 | | | 4,361 | | | — | | | 4,361 | | | — | | | Loans held for investment, net | 23,769,645 | | | 23,604,206 | | | — | | | — | | | 23,604,206 | | | Derivative assets | 40,892 | | | 40,892 | | | — | | | 40,892 | | | — | | | Financial liabilities: | | | | | | | | | | | Total deposits | 26,448,767 | | | 26,450,932 | | | — | | | — | | | 26,450,932 | | | Short-term borrowings | 330,000 | | | 330,000 | | | — | | | 330,000 | | | — | | | Long-term debt | 620,575 | | | 593,610 | | | — | | | 593,610 | | | — | | | Securities sold not yet purchased | 12,026 | | | 12,026 | | | 12,026 | | | — | | | — | | | Derivative liabilities | 24,458 | | | 24,458 | | | — | | | 24,458 | | | — | | | December 31, 2024 | | | | | | | | | | | Financial assets: | | | | | | | | | | | Cash and cash equivalents | $ | 3,188,808 | | | $ | 3,188,808 | | | $ | 3,188,808 | | | $ | — | | | $ | — | | | Available-for-sale debt securities | 3,524,686 | | | 3,524,686 | | | 277,285 | | | 3,235,475 | | | 11,926 | | | Held-to-maturity debt securities | 796,168 | | | 678,174 | | | — | | | 678,174 | | | — | | | Equity securities | 75,261 | | | 75,261 | | | 59,235 | | | 16,026 | | | — | | | | | | | | | | | | | Loans held for investment, net | 22,178,357 | | | 22,115,585 | | | — | | | — | | | 22,115,585 | | | Derivative assets | 23,202 | | | 23,202 | | | — | | | 23,202 | | | — | | | Financial liabilities: | | | | | | | | | | | Total deposits | 25,238,599 | | | 25,245,009 | | | — | | | — | | | 25,245,009 | | | Short-term borrowings | 885,000 | | | 885,000 | | | — | | | 885,000 | | | — | | | Long-term debt | 660,346 | | | 622,713 | | | — | | | 622,713 | | | — | | | Securities sold not yet purchased | 33,705 | | | 33,705 | | | 33,705 | | | — | | | — | | | Derivative liabilities | 57,906 | | | 57,906 | | | — | | | 57,906 | | | — | |
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