Summary of Business and Significant Accounting Policies - Remaining Performance Obligation (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 1,894.7	$ 1,732.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 1,047.2
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months