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Equity Based Compensation - Compensation expense related to share-based awards (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | $ 29,372 | $ 30,846 | $ 74,469
Time-Vested Stock Options [Member] |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 20,785 | 23,560 | 2,309
Performance-Vested Awards [Member] |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 1,136 | 0 | 0
Market-Vested Stock Options [Member] |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 0 | (2,172) | 2,172
Legacy restricted stock units [Member] |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 0 | 0 | 396
Legacy Profits Interests [Member] |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 7,451 | 9,458 | 69,592
Research and development |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | 12,504 | 15,864 | 23,711
General and administrative |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Total equity-based compensation expense | $ 16,868 | $ 14,982 | $ 50,758

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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