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Borrowings and Subordinated Debentures - Schedule of Borrowings (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Outstanding Balance |  |
Overnight advances | $ 50,000 | $ 250,000
Outstanding advances | $ 112,500 | $ 100,000
Weighted Average Rate |  |
Overnight advances (percent) | 5.77% | 4.65%
Outstanding advances (percent) | 3.69% | 3.57%
FHLB of San Francisco |  |
Outstanding Balance |  |
Overnight advances | $ 50,000 | $ 250,000
Advances due within 12 months | 37,500 | 50,000
Advances due over 12 months through 24 months | 12,500 | 37,500
Advances due over 24 months through 36 months | 62,500 | 12,500
Outstanding advances | $ 162,500 | $ 350,000
Weighted Average Rate |  |
Overnight advances (percent) | 5.77% | 4.65%
Advances due within 12 months (percent) | 0.40% | 0.97%
Advances due over 12 months through 24 months (percent) | 1.90% | 0.40%
Advances due over 24 months through 36 months (percent) | 4.37% | 1.90%
Outstanding advances (percent) | 3.69% | 3.57%

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- Definition Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + 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(13)(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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