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Debt - Schedule of Debt (Details) - USD ($) | Jun. 30, 2024 | Apr. 14, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Oct. 15, 2021 | Nov. 17, 2020
--- | --- | --- | --- | --- | --- | ---
Debt Instrument |  |  |  |  |  |
Principal balance | $ 1,089,900,000 |  | $ 1,130,600,000 |  |  |
Unamortized original issue discount | (69,100,000) |  | (78,800,000) |  |  |
Unamortized deferred financing costs | (5,700,000) |  | (7,200,000) |  |  |
Long-term debt | 531,211,000 |  | 564,836,000 |  |  |
Aggregate principal amount of debt | 1,015,100,000 |  | 1,044,600,000 |  |  |
Long term debt, gross, current | (60,500,000) |  | (63,800,000) |  |  |
Debt instrument unamortized discount current | 0 |  | 0 |  |  |
Debt issuance costs, current, net | 0 |  | 0 |  |  |
Long-term debt, current maturities | (60,500,000) |  | (63,800,000) |  |  |
Long term debt, gross, noncurrent | 1,029,400,000 |  | 1,066,800,000 |  |  |
Debt instrument, unamortized discount, noncurrent | (69,100,000) |  | (78,800,000) |  |  |
Debt issuance costs, noncurrent, net | (5,700,000) |  | (7,200,000) |  |  |
Non-current portion of long-term debt | 954,600,000 |  | 980,800,000 |  |  |
Senior Secured Term Loan | Senior Secured Term Loan |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |
Principal balance | 326,100,000 |  | 350,400,000 |  | $ 516,000,000.0 |
Unamortized original issue discount | (3,900,000) |  | (5,200,000) |  |  |
Unamortized deferred financing costs | (900,000) |  | (1,100,000) |  |  |
Secured debt | 321,300,000 |  | 344,100,000 |  |  |
Senior Secured Term Loan | 2026 Senior Notes |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |
Principal balance |  |  |  | $ 30,000,000.0 |  |
Senior Notes | 2026 Senior Notes |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |
Principal balance | 278,500,000 |  | 291,600,000 |  | $ 400,000,000 |
Unamortized original issue discount | (4,600,000) |  | (5,800,000) |  |  |
Unamortized deferred financing costs | (3,500,000) |  | (4,600,000) |  |  |
Long-term debt | 270,400,000 |  | 281,200,000 |  |  |
Convertible Debt | 2027 Notes |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |
Principal balance | 485,300,000 |  | 485,300,000 |  |  | $ 497,100,000
Unamortized original issue discount | (60,600,000) |  | (67,800,000) |  |  |
Unamortized deferred financing costs | (1,300,000) |  | (1,500,000) |  |  |
Long-term debt | 423,400,000 |  | 416,000,000.0 |  |  |
Convertible Debt | 2024 Notes |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |
Principal balance | 0 | $ 3,300,000 | 3,300,000 |  |  |
Unamortized original issue discount | 0 |  | 0 |  |  |
Unamortized deferred financing costs | 0 |  | 0 |  |  |
Long-term debt | $ 0 |  | $ 3,300,000 |  |  |

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