Fair Value - Schedule of Fair Value, Assets and Liabilities Measured (Details) - USD ($) $ in Millions |
Sep. 25, 2026 |
Dec. 26, 2025 |
|---|---|---|
| Pension obligation | ||
| Other liabilities: | ||
| Liabilities | $ 2.7 | $ 2.3 |
| Plan assets | ||
| Other non-current assets: | ||
| Assets | 0.7 | |
| Quoted Prices in Active Markets for Identical Assets (Level 1) | Pension obligation | ||
| Other liabilities: | ||
| Liabilities | 0.0 | 0.0 |
| Quoted Prices in Active Markets for Identical Assets (Level 1) | Plan assets | ||
| Other non-current assets: | ||
| Assets | 0.0 | |
| Significant Other Observable Inputs (Level 2) | Pension obligation | ||
| Other liabilities: | ||
| Liabilities | 0.0 | 0.0 |
| Significant Other Observable Inputs (Level 2) | Plan assets | ||
| Other non-current assets: | ||
| Assets | 0.0 | |
| Significant Unobservable Inputs (Level 3) | Pension obligation | ||
| Other liabilities: | ||
| Liabilities | $ 2.7 | 2.3 |
| Significant Unobservable Inputs (Level 3) | Plan assets | ||
| Other non-current assets: | ||
| Assets | $ 0.7 |