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Fair Value Measurements - Summary of Information about Valuation Processes Used to Determine Nonrecurring Fair Value Measurements (Detail) - Fair Value, Nonrecurring [Member] $ in Thousands | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($)
--- | --- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Impaired loans |  | $ 2,351 | $ 751 |
Loans Held for Sale |  | 4,074 | 3,860 |
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Impaired loans |  | 2,351 | 751 | $ 2,351
Loans Held for Sale |  | $ 4,074 | $ 3,860 |
Fair Value, Inputs, Level 3 [Member] | Measurement Input Liquidation Expenses Rate [Member] | Appraisal Of Collateral [Member] |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Range (Weighted Average) | [1] | 10 | 10 |
Fair Value, Inputs, Level 3 [Member] | Measurement Input Liquidation of Collateral Rate [Member] | Appraisal Of Collateral [Member] |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Range (Weighted Average) | [1] | 15 | 15 |
[1] | Fair value is generally determined through independent appraisals of the underlying collateral, which include various Level III inputs that are not identifiable.

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- Definition Value of input used to measure alternative investment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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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. + References No definition available. + Details
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