Segment Information and Geographical Data (Long-Lived Assets Attributable To Geographic Areas) (Details) - USD ($) $ in Thousands |
Sep. 25, 2026 |
Dec. 26, 2025 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived assets | $ 123,090 | $ 120,764 |
| United States [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived assets | 103,925 | 102,894 |
| Europe (U.K., Germany and Netherlands) [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived assets | 15,989 | 15,848 |
| Other (Australia, Canada, India and Uruguay) [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived assets | $ 3,176 | $ 2,022 |