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Stockholders' Equity - Additional Information (Detail) - USD ($) | Mar. 31, 2023 | Jun. 17, 2021
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Subordinated Notes due 2036 [Member] | Private Placement [Member] |  |
Stockholders Equity [Line Items] |  |
Aggregate principal amount |  | $ 60,000,000
Maximum [Member] |  |
Stockholders Equity [Line Items] |  |
Quantitative limit for trust preferred securities to be included in tier 1 capital | $ 15,000,000,000 |

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