Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($) |
12 Months Ended | |||
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Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Accumulated Other Comprehensive Income Loss [Line Items] | ||||
| Net gain (loss) on sales of securities | $ (1,871,000) | $ (499,000) | ||
| Net unrealized gains (losses) recorded in comprehensive income | (1,700,000) | $ 1,700,000 | (100,000) | $ 100,000 |
| Sale of securities | 8,149,000 | $ 0 | 55,884,000 | |
| Unrealized Gains and Losses on Available for Sale Securities | Reclassification out of Accumulated Other Comprehensive Income | ||||
| Accumulated Other Comprehensive Income Loss [Line Items] | ||||
| Net gain (loss) on sales of securities | $ 1,900,000 | $ 500,000 | ||
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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/2003/role/disclosureRef
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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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