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Financial Instruments - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial assets: |  |
Federal funds sold | $ 3,725 | $ 5,100
Investment securities - available for sale | 3,072,639 | 3,507,841
Investment securities - held-to-maturity | 1,142,940 | 1,170,481
Level 1 | Carrying Amount |  |
Financial assets: |  |
Cash and cash equivalents | 910,347 | 1,000,213
Federal funds sold | 3,725 | 5,100
Accrued interest receivable | 120,129 | 118,966
Marketable equity securities | 48,954 | 49,419
Financial liabilities: |  |
Demand and non-interest bearing | 4,006,115 | 4,085,501
Savings and interest-bearing transaction accounts | 11,347,850 | 11,050,347
Securities sold under agreements to repurchase | 162,350 | 142,085
Accrued interest payable | 20,186 | 19,124
Level 1 | Fair Value |  |
Financial assets: |  |
Cash and cash equivalents | 910,347 | 1,000,213
Federal funds sold | 3,725 | 5,100
Accrued interest receivable | 120,129 | 118,966
Marketable equity securities | 48,954 | 49,419
Financial liabilities: |  |
Demand and non-interest bearing | 4,006,115 | 4,085,501
Savings and interest-bearing transaction accounts | 11,347,850 | 11,050,347
Securities sold under agreements to repurchase | 162,350 | 142,085
Accrued interest payable | 20,186 | 19,124
Level 2 | Carrying Amount |  |
Financial assets: |  |
Investment securities - available for sale | 3,051,110 | 3,485,031
Investment securities - held-to-maturity | 1,275,204 | 1,281,982
Financial liabilities: |  |
FHLB and other borrowed funds | 600,750 | 1,301,300
Level 2 | Fair Value |  |
Financial assets: |  |
Investment securities - available for sale | 3,051,110 | 3,485,031
Investment securities - held-to-maturity | 1,142,940 | 1,170,481
Financial liabilities: |  |
FHLB and other borrowed funds | 556,095 | 1,291,926
Level 3 | Carrying Amount |  |
Financial assets: |  |
Investment securities - available for sale | 21,529 | 22,810
Loans receivable, net of impaired loans and allowance | 14,244,458 | 14,048,002
FHLB, FRB & FNBB stock; other equity investments | 226,910 | 223,748
Financial liabilities: |  |
Time deposits | 1,792,332 | 1,651,863
Subordinated debentures | 439,246 | 439,834
Level 3 | Fair Value |  |
Financial assets: |  |
Investment securities - available for sale | 21,529 | 22,810
Loans receivable, net of impaired loans and allowance | 14,207,935 | 14,071,775
FHLB, FRB & FNBB stock; other equity investments | 226,910 | 223,748
Financial liabilities: |  |
Time deposits | 1,781,156 | 1,633,091
Subordinated debentures | $ 375,887 | $ 358,682

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- Definition The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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