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Debt - Subsequent Event - Narrative (Details) - USD ($) $ in Millions | Nov. 01, 2021 | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Financing costs |  | $ 13.6 | $ 16.0
Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity |  | 1,750.0 |
Credit Facility | Revolving commitments |  |  |
Debt Instrument [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 1,350.0 |
Credit Facility | Subsequent Event |  |  |
Debt Instrument [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 2,000.0 |  |
Financing costs | 5.0 |  |
Credit Facility | Subsequent Event | Revolving commitments |  |  |
Debt Instrument [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 1,650.0 |  |
Credit Facility | Subsequent Event | Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 350.0 |  |

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