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Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2019
Related Party Transaction [Line Items]          
General and administrative expenses $ 107.8 $ 102.2 $ 218.3 $ 202.9  
Medalogix, LLC          
Related Party Transaction [Line Items]          
Payments to acquire investment         $ 2.0
Overhead Expense | Related Party          
Related Party Transaction [Line Items]          
General and administrative expenses   4.1   7.7  
Share-Based Compensation Expense | Related Party          
Related Party Transaction [Line Items]          
General and administrative expenses   1.2   2.5  
Medalogix Analytics Platforms | Related Party          
Related Party Transaction [Line Items]          
Cost of service, excluding depreciation and amortization and General and administrative expenses $ 1.3 $ 2.4 $ 0.7 $ 2.3