Performance Obligation (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 270.6	$ 289.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage	50.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	16 months