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v3.25.1

Fair Value Measurement - Estimates Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financial Assets |  |
Cash and due from banks | $ 1,091,715 | $ 568,137
Equity securities | 28,217 | 13,427
Available-for-sale debt securities | 3,149,043 | 2,246,072
Net held-to-maturity debt securities | 1,143,376 | 1,152,906
Net loans | 18,440,131 | 12,517,663
Loans held for sale | 243,281 | 18,695
Accrued interest receivable | 108,778 | 78,324
Financial Liabilities |  |
Deposits | 21,292,395 | 14,133,717
Federal Home Loan Bank borrowings | 1,476,511 | 1,000,000
Other borrowings | 147,804 | 192,073
Subordinated debt and junior subordinated debt | 360,156 | 279,308
Accrued interest payable | 26,570 | 14,228
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Financial Assets |  |
Cash and due from banks | 1,091,715 | 568,137
Equity securities | 28,217 | 13,427
Accrued interest receivable | 108,778 | 78,324
Financial Liabilities |  |
Deposits | 18,263,502 | 12,406,785
Other borrowings | 133,656 | 180,372
Accrued interest payable | 26,570 | 14,228
Significant Other Observable Inputs (Level 2) [Member] |  |
Financial Assets |  |
Available-for-sale debt securities | 3,146,348 | 2,244,988
Net held-to-maturity debt securities | 1,002,596 | 1,006,617
Loans held for sale | 243,281 | 18,695
Other assets - interest rate derivatives | 66,947 | 72,343
Financial Liabilities |  |
Deposits | 3,010,158 | 1,714,530
Federal Home Loan Bank borrowings | 1,477,146 | 1,000,371
Subordinated debt and junior subordinated debt | 342,315 | 262,101
Other liabilities - interest rate derivatives | 67,833 | 72,204
Significant Unobservable Inputs (Level 3) [Member] |  |
Financial Assets |  |
Available-for-sale debt securities | 2,695 | 1,084
Net held-to-maturity debt securities | 200 | 200
Net loans | 18,029,036 | 12,042,064
Carrying Amount [Member] |  |
Financial Assets |  |
Cash and due from banks | 1,091,715 | 568,137
Equity securities | 28,217 | 13,427
Available-for-sale debt securities | 3,149,043 | 2,246,072
Net held-to-maturity debt securities | 1,143,239 | 1,152,760
Net loans | 18,440,131 | 12,517,663
Loans held for sale | 243,281 | 18,695
Other assets - interest rate derivatives | 66,947 | 72,343
Accrued interest receivable | 108,778 | 78,324
Financial Liabilities |  |
Deposits | 21,292,395 | 14,133,717
Federal Home Loan Bank borrowings | 1,476,511 | 1,000,000
Other borrowings | 147,804 | 192,073
Subordinated debt and junior subordinated debt | 360,156 | 279,308
Other liabilities - interest rate derivatives | 67,833 | 72,204
Accrued interest payable | 26,570 | 14,228
Fair Value Estimate [Member] |  |
Financial Assets |  |
Cash and due from banks | 1,091,715 | 568,137
Equity securities | 28,217 | 13,427
Available-for-sale debt securities | 3,149,043 | 2,246,072
Net held-to-maturity debt securities | 1,002,796 | 1,006,817
Net loans | 18,029,036 | 12,042,064
Loans held for sale | 243,281 | 18,695
Other assets - interest rate derivatives | 66,947 | 72,343
Accrued interest receivable | 108,778 | 78,324
Financial Liabilities |  |
Deposits | 21,273,660 | 14,121,315
Federal Home Loan Bank borrowings | 1,477,146 | 1,000,371
Other borrowings | 133,656 | 180,372
Subordinated debt and junior subordinated debt | 342,315 | 262,101
Other liabilities - interest rate derivatives | 67,833 | 72,204
Accrued interest payable | $ 26,570 | $ 14,228

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481830/320-10-45-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
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