Inventory Financing Agreements (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Feb. 18, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Inventory Financing Agreements | ||||||
| Interest expense | $ 52.0 | $ 52.9 | $ 103.1 | $ 111.4 | ||
| Inventory financing obligation | ||||||
| Inventory Financing Agreements | ||||||
| Repayment of debt | $ 32.5 | |||||
| Interest expense | 2.7 | $ 2.9 | 5.4 | $ 7.0 | ||
| Shreveport Supply and Offtake Agreement | Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | ||||||
| Inventory Financing Agreements | ||||||
| Net carrying value | $ 108.8 | $ 108.8 | $ 91.1 | |||