Deposits - Additional Information (Detail) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Time deposits | $ 2,632,139 | $ 2,503,421 |
| Accrued interest payable on deposits | 28,100 | 34,800 |
| Total deposits reclassified to loans due to overdrafts | 1,600 | 2,400 |
| California | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Time deposits | 181,300 | 150,800 |
| Minimum | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Time deposits | 250,000 | |
| Time Deposits More Than $250,000 | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Time deposits | 1,248,677 | 1,137,536 |
| Other Time Deposits | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Time deposits | 1,383,462 | 1,365,885 |
| Brokered deposits | $ 86,900 | $ 88,500 |
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- Definition Brokered deposits. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of accrued but unpaid interest on deposit liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of time deposit liabilities, including certificates of deposit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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