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Revenue from Contracts with Customers - Additional Information (Details) - USD ($) $ in Millions | 9 Months Ended |
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Jun. 30, 2022 | Jun. 30, 2021 | Sep. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Amount of remaining performance obligations | $ 2,130.2 |  |
Change in estimate of transaction price | $ 56.7 |  | $ 52.8
Total Revenues | Customer Concentration Risk | Three Customers [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Total revenue percentage | 80.00% | 80.00% |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Percentage of remaining performance obligations | 91.00% |  |
Expected time period of satisfaction (in years) | 5 years |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-07-01 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Expected time period of satisfaction (in years) | 5 years |  |

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