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Summary of Significant Accounting Policies (Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 25, 2020 | Dec. 27, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of Intangible Assets | $ 17,900 | $ 16,700 | $ 15,500
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |
Total Other Intangible Assets, Gross | 284,112 | 274,080 |
Total Other Intangible Assets, Accumulated Amortization | (124,843) | (107,057) |
Total Other Intangible Assets, Foreign Currency Translation | (9,529) | (6,354) |
Total Other Intangible Assets, Net | 149,740 | 160,669 |
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |
Estimated amortization expense 2022 | 17,893 |  |
Estimated amortization expense 2023 | 16,949 |  |
Estimated amortization expense 2024 | 15,394 |  |
Estimated amortization expense 2025 | 14,823 |  |
Estimated amortization expense 2026 | 7,959 |  |
Estimated amortization expense thereafter | 15,201 |  |
Trade Names |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Indefinite-Lived Trade Names | 62,633 | 61,920 |
Indefinite Lived Intangible Assets, Foreign Currency Translation | (1,112) | 188 |
Indefinite Lived Intangible Assets, Net | 61,521 | 62,108 |
Customer Relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets, Gross | 194,505 | 186,073 |
Finite Lived Intangible Assets, Accumulated Amortization | (108,657) | (93,832) |
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss) | (7,710) | (6,004) |
Finite Lived Intangible Assets, Net | $ 78,138 | $ 86,237 |
Finite Lived Intangible Assets, Weighted Average Useful Life | 13 years | 13 years |
Patents and Proprietary Technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets, Gross | $ 26,074 | $ 25,187 |
Finite Lived Intangible Assets, Accumulated Amortization | (15,734) | (12,924) |
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss) | (707) | (538) |
Finite Lived Intangible Assets, Net | $ 9,633 | $ 11,725 |
Finite Lived Intangible Assets, Weighted Average Useful Life | 10 years | 10 years |
Trademarks, Trade Names and Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets, Gross | $ 900 | $ 900 |
Finite Lived Intangible Assets, Accumulated Amortization | (452) | (301) |
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss) | 0 | 0 |
Finite Lived Intangible Assets, Net | $ 448 | $ 599 |
Finite Lived Intangible Assets, Weighted Average Useful Life | 5 years | 5 years |

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