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Financial Instruments - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financial assets: |  |
Fed funds sold | $ 6,275 | $ 3,725
Investment securities - held-to-maturity | 1,153,262 | 1,142,940
Carrying Amount |  |
Financial assets: |  |
Cash and cash equivalents | 1,295,730 | 910,347
Fed funds sold | 6,275 | 3,725
Investment securities - held-to-maturity | 1,269,896 | 1,275,204
Loans receivable, net of impaired loans and allowance | 14,451,006 | 12,244,458
Accrued interest receivable | 115,983 | 120,129
FHLB, Federal Reserve & FNBB stock; other equity investments | 228,621 | 226,910
Marketable equity securities | 49,395 | 48,954
Financial liabilities: |  |
Demand and non-interest bearing | 4,079,289 | 4,006,115
Savings and interest-bearing transaction accounts | 11,586,106 | 11,347,850
Time deposits | 1,876,096 | 1,792,332
Securities sold under agreements to repurchase | 161,401 | 162,350
FHLB and other borrowed funds | 600,500 | 600,750
Accrued interest payable | 15,759 | 20,186
Subordinated debentures | 439,102 | 439,246
Fair Value Measurements |  |
Financial assets: |  |
Cash and cash equivalents | 1,295,730 | 910,347
Fed funds sold | 6,275 | 3,725
Investment securities - held-to-maturity | 1,153,262 | 1,142,940
Loans receivable, net of impaired loans and allowance | 14,487,545 | 14,207,935
Accrued interest receivable | 115,983 | 120,129
FHLB, Federal Reserve & FNBB stock; other equity investments | 228,621 | 226,910
Marketable equity securities | 49,395 | 48,954
Financial liabilities: |  |
Demand and non-interest bearing | 4,079,289 | 4,006,115
Savings and interest-bearing transaction accounts | 11,586,106 | 11,347,850
Time deposits | 1,861,185 | 1,781,156
Securities sold under agreements to repurchase | 161,401 | 162,350
FHLB and other borrowed funds | 565,740 | 556,095
Accrued interest payable | 15,759 | 20,186
Subordinated debentures | 412,969 | 375,887
Level 1 | Fair Value Measurements |  |
Financial assets: |  |
Cash and cash equivalents | 1,295,730 | 910,347
Fed funds sold | 6,275 | 3,725
Investment securities - held-to-maturity | 0 | 0
Loans receivable, net of impaired loans and allowance | 0 | 0
Accrued interest receivable | 115,983 | 120,129
FHLB, Federal Reserve & FNBB stock; other equity investments | 0 | 0
Marketable equity securities | 49,395 | 48,954
Financial liabilities: |  |
Demand and non-interest bearing | 4,079,289 | 4,006,115
Savings and interest-bearing transaction accounts | 11,586,106 | 11,347,850
Time deposits | 0 | 0
Securities sold under agreements to repurchase | 161,401 | 162,350
FHLB and other borrowed funds | 0 | 0
Accrued interest payable | 15,759 | 20,186
Subordinated debentures | 0 | 0
Level 2 | Fair Value Measurements |  |
Financial assets: |  |
Cash and cash equivalents | 0 | 0
Fed funds sold |  | 0
Investment securities - held-to-maturity | 1,153,262 | 1,142,940
Loans receivable, net of impaired loans and allowance | 0 | 0
Accrued interest receivable | 0 | 0
FHLB, Federal Reserve & FNBB stock; other equity investments | 0 | 0
Marketable equity securities | 0 | 0
Financial liabilities: |  |
Demand and non-interest bearing | 0 | 0
Savings and interest-bearing transaction accounts | 0 | 0
Time deposits | 0 | 0
Securities sold under agreements to repurchase | 0 | 0
FHLB and other borrowed funds | 565,740 | 556,095
Accrued interest payable | 0 | 0
Subordinated debentures | 0 | 0
Level 3 | Fair Value Measurements |  |
Financial assets: |  |
Cash and cash equivalents | 0 | 0
Fed funds sold | 0 | 0
Investment securities - held-to-maturity | 0 | 0
Loans receivable, net of impaired loans and allowance | 14,487,545 | 14,207,935
Accrued interest receivable | 0 | 0
FHLB, Federal Reserve & FNBB stock; other equity investments | 228,621 | 226,910
Marketable equity securities | 0 | 0
Financial liabilities: |  |
Demand and non-interest bearing | 0 | 0
Savings and interest-bearing transaction accounts | 0 | 0
Time deposits | 1,861,185 | 1,781,156
Securities sold under agreements to repurchase | 0 | 0
FHLB and other borrowed funds | 0 | 0
Accrued interest payable | 0 | 0
Subordinated debentures | $ 412,969 | $ 375,887

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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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