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Summary of Significant Accounting Policies and Supplemental Balance Sheet Information - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
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Intangible Assets [Line Items] |  |
Definite-lived intangible assets, Accumulated Amortization | $ (21,901) | $ (17,170)
Definite-lived intangible assets, Net | 25,626 |
Intangible assets, Gross Carrying Amount | 48,107 | 45,315
Intangible assets, Net | $ 26,206 | $ 28,145
Customer Lists and Relationships [Member] |  |
Intangible Assets [Line Items] |  |
Definite-lived intangible assets, Weighted Average Original Life (Years) | 9 years 3 months 18 days | 9 years 3 months 18 days
Definite-lived intangible assets, Gross Carrying Amount | $ 11,260 | $ 10,454
Definite-lived intangible assets, Accumulated Amortization | 9,435 | 7,927
Definite-lived intangible assets, Net | $ 1,825 | $ 2,527
Developed Technology [Member] |  |
Intangible Assets [Line Items] |  |
Definite-lived intangible assets, Weighted Average Original Life (Years) | 11 years 10 months 24 days | 11 years 10 months 24 days
Definite-lived intangible assets, Gross Carrying Amount | $ 33,929 | $ 31,943
Definite-lived intangible assets, Accumulated Amortization | (11,048) | (7,994)
Definite-lived intangible assets, Net | $ 22,881 | $ 23,949
Patents and Other [Member] |  |
Intangible Assets [Line Items] |  |
Definite-lived intangible assets, Weighted Average Original Life (Years) | 14 years 10 months 24 days | 14 years 10 months 24 days
Definite-lived intangible assets, Gross Carrying Amount | $ 2,338 | $ 2,338
Definite-lived intangible assets, Accumulated Amortization | 1,418 | 1,249
Definite-lived intangible assets, Net | 920 | 1,089
Definite-Lived Intangible Assets [Member] |  |
Intangible Assets [Line Items] |  |
Definite-lived intangible assets, Gross Carrying Amount | 47,527 | 44,735
Definite-lived intangible assets, Accumulated Amortization | (21,901) | (17,170)
Definite-lived intangible assets, Net | 25,626 | 27,565
Trademarks and Trade Names [Member] |  |
Intangible Assets [Line Items] |  |
Indefinite-lived intangible assets, Net | $ 580 | $ 580

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