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Revenue from Contracts with Customers - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	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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- Definition

Contract With Customer, Cumulative Adjustment For Change In Estimate Of Transaction Price

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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