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Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) | Dec. 31, 2020 | Aug. 21, 2020 | Dec. 31, 2019 | Mar. 31, 2017
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 3,589,500,000 |  | $ 3,749,200,000 |
Less: Debt discount | (69,700,000) |  | (102,700,000) |
Less: Debt issuance costs | (28,500,000) |  | (34,000,000.0) |
Net long-term debt, including current maturities | 3,491,300,000 |  | 3,612,500,000 |
Less: Current maturities | (531,600,000) |  | (736,000,000.0) |
Net long-term debt | 2,959,700,000 |  | 2,876,500,000 |
Senior Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 700,000,000.0 |  | $ 800,000,000.0 |
Debt instrument, interest rate | 1.90% |  | 3.30% |
Term Loan B Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 1,614,500,000 |  | $ 1,630,900,000 |
Less: Debt discount | (9,000,000.0) |  | (10,500,000) |
Less: Debt issuance costs | $ (21,000,000.0) |  | $ (24,300,000) |
Debt instrument, interest rate | 2.15% |  | 3.80% |
Other long-term debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 0 |  | $ 53,300,000 |
3.875% Notes | Notes Payable |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | 700,000,000.0 |  | 0 |
Less: Debt discount | (6,500,000) |  | 0 |
Less: Debt issuance costs | $ (2,300,000) |  | 0 |
Debt instrument, interest rate | 3.875% | 3.875% |  |
1.00% Notes | Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 0 |  | 690,000,000.0 |
Less: Debt discount | 0 |  | (20,400,000) |
Less: Debt issuance costs | $ 0 |  | (2,800,000) |
Debt instrument, interest rate | 1.00% |  |  |
1.625% Notes | Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 575,000,000.0 |  | 575,000,000.0 |
Less: Debt discount | (54,200,000) |  | (71,800,000) |
Less: Debt issuance costs | (5,200,000) |  | $ (6,900,000) |
Less: Current maturities | $ (515,600,000) |  |  |
Debt instrument, interest rate | 1.625% |  | 1.625% | 1.625%
Minimum | Other long-term debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate | 1.00% |  |  |
Maximum | Other long-term debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate | 1.48% |  |  |

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