Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Dec. 31, 2022 |
Sep. 30, 2022 |
|
| Revenue from Contract with Customer [Abstract] | ||
| Revenue remaining obligation description | As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue. | |
| Contract assets recorded in prepaid expenses and other current assets | $ 7.2 | $ 5.9 |