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Stock-Based Compensation Expense and Employee Benefit Plans - Stock Awards Narrative (Details) - Restricted Stock Units - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated share-based compensation expense $ 18.4 $ 15.8 $ 64.4 $ 40.6  
Unrecognized stock-based compensation cost $ 155.2   $ 155.2   $ 114.9
Expense expected to be recognized over a weighted-average period     2 years 1 month 6 days   2 years 3 months 18 days