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Debt - Senior Secured Convertible Notes due 2027, Senior Secured Convertible Notes due 2031, and the Convertible Notes Exchange (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 15, 2024 USD ($) component $ / shares shares | Mar. 31, 2025 USD ($) shares $ / shares | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) $ / shares | Nov. 17, 2020 $ / shares
Line of Credit Facility |  |  |  |  |
Aggregate principal amount | $ 223,600,000 |  |  |  |
Principal balance |  | $ 1,037,300,000 |  | $ 1,111,800,000 |
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.01 |  | $ 0.01 |
2027 Notes | Convertible Debt |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Stated interest rate (as a percent) |  |  |  |  | 6.00%
Repurchased face amount | 223,600,000 |  |  |  |
Debt instrument, debt repurchased, rate per $1,000 | 1,110 |  |  |  |
Repurchase amount | $ 248,200,000 |  |  |  |
Principal balance |  | $ 38,100,000 |  | $ 38,100,000 |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 |  |  |  |
Number of components | component | 2 |  |  |  |
Reduction in additional paid-in capital |  |  |  | 237,500,000 |
Fair value of equity component of debt |  | $ 42,000,000.0 |  | 42,000,000.0 |
Aggregate shares receivable upon conversion (in shares) | shares |  | 22,500,000 |  |  |
Effective interest rate (as a percent) |  | 10.50% |  |  |
Initial conversion rate (in shares) | shares |  | 0 |  |  |
2027 Notes | Convertible Debt | Fair Value, Inputs, Level 2 |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Debt fair value |  | $ 37,500,000 |  | 44,600,000 |
2027 Notes | Convertible Debt | Period 1 |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Redemption rate (as a percent) | 110.00% |  |  |  |
2027 Notes | Convertible Debt | Scenario, Plan |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Initial conversion rate (in shares) | shares | 200 |  |  |  |
Conversion price (in dollars per share) | $ / shares | $ 5.00 |  |  |  | $ 5.00
Aggregate shares receivable upon conversion (in shares) | shares |  | 7,600,000 |  |  |
2031 Notes | Convertible Debt |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Stated interest rate (as a percent) | 6.00% |  |  |  |
Accrued and unpaid interest | $ 10,000,000 |  |  |  |
Principal balance | $ 110,000 | $ 223,700,000 |  | 223,700,000 |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 |  |  |  |
Redemption rate (as a percent) | 140.00% |  |  |  |
Debt redemption right, amount | $ 72,800,000 |  |  |  |
Debt redemption right, percentage of principal (as a percent) | 30.00% |  |  |  |
Minimum qualified cash required | $ 30,000,000.0 |  |  |  |
Number of components | component | 2 |  |  |  |
Reduction in additional paid-in capital |  | $ 80,400,000 |  | $ 80,400,000 |
Aggregate shares receivable upon conversion (in shares) | shares |  | 143,900,000 |  |  |
Debt instrument, issued premium rate (as a percent) | 50.00% |  |  |  |
Effective interest rate (as a percent) |  | 6.60% |  |  |
Initial conversion rate (in shares) | shares |  | 0 |  |  |
2031 Notes | Convertible Debt | Period 1 |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Redemption rate (as a percent) | 110.00% |  |  |  |
Total gross leverage ratio | 1.5 |  |  |  |
2031 Notes | Convertible Debt | Scenario, Plan |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Initial conversion rate (in shares) | shares | 200 |  |  |  |
Conversion price (in dollars per share) | $ / shares | $ 5.00 |  |  |  |
Aggregate shares receivable upon conversion (in shares) | shares |  | 44,700,000 |  |  |
2027 Notes and the 2031 Notes | Convertible Debt |  |  |  |  |
Line of Credit Facility |  |  |  |  |
Interest expense |  | $ 3,900,000 | $ 7,200,000 |  |
Interest paid |  | 0 | 0 |  |
Amortization of the discount |  | 500,000 | 3,600,000 |  |
Amortization of debt issuance costs |  | $ 0 | $ 0 |  |

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