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Long-term Debt and Other Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Nov. 30, 2023 | Apr. 30, 2023 | Feb. 28, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2019
--- | --- | --- | --- | --- | --- | --- | ---
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | $ 398,661 |  |  |  | $ 202,788 |  |
Debt instrument, face amount, current | 34,600 |  |  |  | 59,575 |  |
Debt instruments, face amount, noncurrent | 364,061 |  |  |  | 143,213 |  |
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 38,361 |  |  |  | 11,098 |  |
Debt instrument, unamortized discount, current | 0 |  |  |  | 0 |  |
Debt instrument, unamortized discount, noncurrent | 38,361 |  |  |  | 11,098 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | 360,300 |  |  |  | 191,690 |  |
Less: current portion | 34,600 |  |  |  | 59,575 |  |
Long-term debt and vendor financing | 325,700 |  |  |  | 132,115 |  |
2023 Funding Agreement |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | 117,253 | $ 29,523 | $ 87,730 | $ 88,000 | 0 |  |
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 15,433 |  |  |  | 0 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | 101,820 | $ 24,315 | $ 75,983 |  | 0 |  |
2021 Funding Agreement |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | 75,450 |  |  |  | 0 | $ 94,200 |
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 6,888 |  |  |  | 0 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | 68,562 |  |  |  | 0 | $ 76,324 |
2023 13% Notes |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | 205,958 |  |  |  | 0 |  |
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 16,040 |  |  |  | 0 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | $ 189,918 |  |  |  | 0 |  |
Loan interest rate | 13.00% |  |  |  |  |  |
2019 Facility Agreement |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | $ 0 |  |  |  | 143,213 |  | $ 199,000
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 0 |  |  |  | 11,098 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | 0 |  |  |  | 132,115 |  |
Loan interest rate |  |  |  |  |  |  | 14.00%
Vendor financing |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |
Debt instrument, principal amount | 0 |  |  |  | 59,575 |  |
Unamortized Discount and Deferred Financing Costs |  |  |  |  |  |  |
Total debt and vendor financing | 0 |  |  |  | 0 |  |
Carrying Value |  |  |  |  |  |  |
Fair value at issuance | $ 0 |  |  |  | $ 59,575 |  |

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