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Debt and Credit Facility - Summary of Fair Value of Outstanding Senior Notes (Details) - Senior Notes - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
4.50% Senior Notes    
Debt Instrument [Line Items]    
Fair value of outstanding senior notes $ 399.1 $ 542.6
4.625% Senior Notes    
Debt Instrument [Line Items]    
Fair value of outstanding senior notes $ 410.4 $ 506.9