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Fair Value Measurements - Schedule of Contingent Consideration Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |  |
Contingent consideration expense | $ 3 | $ 9
Contingent Consideration [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |  |
Contingent consideration liability, beginning balance |  | 817
Contingent consideration expense |  | 9
Contingent consideration liability, ending balance | $ 826 | $ 826

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