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Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands | 2 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Feb. 14, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value liabilities | $ 839,497 | $ 1,072,970 | $ 939,850 | $ 821,176
Additions | 20,084 | 24,044 | 19,175 |
Transfer out of Level 3 |  | 0 |  |
Liabilities removed due to warrant exercises |  | (69,123) |  |
Change in valuation inputs or other assumptions | (1,763) | 178,199 | 81,178 |
Level 1 | Public Warrants |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value liabilities | 37,087 | 115,873 | 61,381 | 39,962
Additions | 0 | 0 | 0 |
Transfer out of Level 3 |  | 19,938 |  |
Liabilities removed due to warrant exercises |  | (69,123) |  |
Change in valuation inputs or other assumptions | (2,875) | 103,677 | 24,294 |
Level 2 | Senior Secured Term Loan |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value liabilities | 771,202 | 814,421 | 790,377 | 761,401
Additions | 9,801 | 24,044 | 19,175 |
Transfer out of Level 3 |  | 0 |  |
Liabilities removed due to warrant exercises |  | 0 |  |
Change in valuation inputs or other assumptions | 0 | 0 | 0 |
Level 3 | Private Placement Warrants |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value liabilities | 20,363 | 91,658 | 58,202 | 19,813
Additions | 0 | 0 | 0 |
Transfer out of Level 3 |  | (19,938) |  |
Liabilities removed due to warrant exercises |  | 0 |  |
Change in valuation inputs or other assumptions | 550 | 53,394 | 37,839 |
Level 3 | Working Capital Warrants |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value liabilities | 10,845 | 51,018 | 29,890 | $ 0
Additions | 10,283 | 0 | 0 |
Transfer out of Level 3 |  | 0 |  |
Liabilities removed due to warrant exercises |  | 0 |  |
Change in valuation inputs or other assumptions | $ 562 | $ 21,128 | $ 19,045 |

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