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v3.25.2

INVESTMENT SECURITIES - Additional Information (Detail) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 USD ($) position security issuer | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) position security issuer | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) position security
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Proceeds from sales of investment securities available for sale | $ 450,400,000 | $ 218,700,000 | $ 450,423,000 | $ 240,688,000 |
Number of available-for-sale investment securities, unrealized loss position, less than twelve month category | security | 30 |  | 30 |  |
Number of available-for-sale investment securities, unrealized loss position, twelve month or more category | security | 40 |  | 40 |  |
Number of available-for-sale investment securities, unrealized loss position | security | 70 |  | 70 |  | 117
Number of issuers | issuer | 2 |  | 2 |  |
Accrued interest reversal | $ 0 |  | $ 4,100,000 | $ 0 |
Debt securities, available for sale | 1,846,566,000 |  | 1,846,566,000 |  | $ 1,985,438,000
Debt securities, held-to-maturity, allowance for credit loss, excluding accrued interest | 0 |  | 0 |  | 0
Asset Pledged as Collateral |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Debt securities, available for sale | 1,200,000,000 |  | 1,200,000,000 |  | 1,300,000,000
Debt securities | 391,200,000 |  | 391,200,000 |  | $ 386,400,000
Corporate notes |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Notes acquired | $ 5,100,000 |  | $ 5,100,000 |  |
Number of securities on nonaccrual status | position | 11 |  | 11 |  | 1
Accrued interest reversal |  | $ 0 |  |  |
Debt securities, available for sale | $ 366,210,000 |  | $ 366,210,000 |  | $ 516,330,000
Asset-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Debt securities, available for sale | 228,698,000 |  | 228,698,000 |  | 13,236,000
Debt securities, held-to-maturity, allowance for credit loss, excluding accrued interest | $ 0 |  | $ 0 |  | $ 0

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