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Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Senior Notes | 5.750% Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Interest rate, stated percentage | 5.75% |
Senior Notes | 5.50% Senior Secured Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Interest rate, stated percentage | 5.50% |
Carrying Amount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | $ 4,933,097 | $ 4,607,767
Carrying Amount | Term Loan G, net of discount | Term Loan G, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 0 | 2,337,169
Carrying Amount | Term Loan G, net of discount | Term Loan B, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,311,705 | 0
Carrying Amount | Senior Notes | 5.750% Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,300,000 | 1,300,000
Carrying Amount | Senior Notes | 5.50% Senior Secured Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,050,000 | 0
Carrying Amount | Convertible notes, net of discount | Convertible notes, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,271,297 | 970,506
Carrying Amount | Finance lease obligations |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 95 | 92
Fair Value |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 4,863,523 | 4,661,318
Fair Value | Term Loan G, net of discount | Term Loan G, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 0 | 2,390,720
Fair Value | Term Loan G, net of discount | Term Loan B, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,311,705 | 0
Fair Value | Senior Notes | 5.750% Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,249,894 | 1,300,000
Fair Value | Senior Notes | 5.50% Senior Secured Notes |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,050,000 | 0
Fair Value | Convertible notes, net of discount | Convertible notes, net of discount |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | 1,251,829 | 970,506
Fair Value | Finance lease obligations |  |
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] |  |
Long-term debt instrument, value | $ 95 | $ 92

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