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v3.20.2

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 |

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