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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2022
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Period for federal funds sold outstanding |  |  |  |  |  |  |  |  | 1 day |  |  |
Loan non-accrual classification period |  |  |  |  |  |  |  |  | 90 days |  |  |
Days to charged consumer loans to the value of the collateral |  |  |  |  |  |  |  |  | 90 days |  |  |
Maximum time for re-evaluation (in months) |  |  |  |  |  |  |  |  | 12 months |  |  |
Re-evaluation period for real estate |  |  |  |  |  |  |  |  | 2 years |  |  |
Amount of fair value of capital over carrying value |  |  |  |  |  |  |  |  |  |  |  | $ 427,500
Percentage of fair value of capital over carrying value |  |  |  |  |  |  |  |  |  |  |  | 137.20%
Number of times fair value of capital in excess of carrying value of goodwill description |  |  |  |  |  |  |  |  | over 4.9 times |  |  |
Other real estate owned | $ 0 |  |  |  | $ 159 |  |  |  | $ 0 | $ 159 |  |
Percentage of likelihood of realization of recognized tax benefit, minimum |  |  |  |  |  |  |  |  | 50.00% |  |  |
Provision for loan loss | $ 755 | $ 1,637 | $ 1,628 | $ 580 | $ 444 | $ 659 | $ 641 | $ 1,700 | $ 4,600 | $ 3,444 | $ 6,981 |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maturity period of cash equivalents |  |  |  |  |  |  |  |  | 3 months |  |  |
Maximum [Member] | Accounting Standards Update 2016-13 [Member] | One-time Cumulative-effect Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Provision for loan loss |  |  |  |  |  |  |  |  | $ 7,000 |  |  |
Minimum [Member] | Accounting Standards Update 2016-13 [Member] | One-time Cumulative-effect Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Provision for loan loss |  |  |  |  |  |  |  |  | $ 3,000 |  |  |

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- Definition Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(4)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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