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Loans Receivable - Additional Information (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) Loan | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) Loan
Schedule Of Activity Relating To Amount Due From Related Party [Line Items] |  |  |  |  |
Payments to Acquire Loans Receivable | $ 0 | $ 0 | $ 0 | $ 0 |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |
Schedule Of Activity Relating To Amount Due From Related Party [Line Items] |  |  |  |  |
Financing receivable, accrued interest, writeoff |  |  | $ 366 |  |
Performing [Member] |  |  |  |  |
Schedule Of Activity Relating To Amount Due From Related Party [Line Items] |  |  |  |  |
Number of loans | Loan |  |  | 0 |  | 3
Troubled debt restructuring |  |  |  |  | $ 5,900

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