Income Taxes - Changes in Valuation Allowance on Deferred Tax (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 25, 2022 |
|
| Valuation Allowance on Deferred Tax Rollforward [Roll Forward] | ||
| Beginning balance | $ 32,052 | $ 28,598 |
| Charged to costs and expenses | 5,470 | 3,454 |
| Other | 87 | |
| Ending balance | $ 37,609 | $ 32,052 |