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Fair Value Measurements - Impaired Loans Remeasured and Reported at Fair Value of Underlying Collateral (Detail) - USD ($) $ in Thousands | Mar. 31, 2024 | Mar. 31, 2023
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Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Carrying value of impaired loans before allocations | $ 16,332 | $ 368
Impaired Financing Receivable, Related Allowance | (1,589) | 0
Loans receivable, fair value disclosure | 14,743 | 368
Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Carrying value of impaired loans before allocations | 16,182 | 6,242
Impaired Financing Receivable, Related Allowance | (1,172) | (900)
Loans receivable, fair value disclosure | $ 15,010 | $ 5,342

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + Details
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