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Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201613Member  
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning Balance $ 71.9  
Amounts accrued 26.5 $ 4.6
Write-offs charged against the allowance (13.4)  
Ending Balance 93.9  
Cumulative Effect, Period Of Adoption, Adjustment    
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning Balance $ 8.9