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Restructuring - Summary of Costs Incurred (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 25, 2021 | Sep. 26, 2020 | Sep. 25, 2021 | Sep. 26, 2020
Canada |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total | $ 462 | $ 651 | $ 497 | $ 3,362
Canada | Facility Consolidation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Labor expenses | 0 | 19 | 0 | 396
Inventory valuation adjustments | 0 | 47 | 0 | 47
Consulting and legal fees | 26 | 63 | 26 | 114
Other expenses | 0 | 51 | 5 | 713
Rent and related charges | 0 | 434 | 0 | 1,523
Severance | 436 | 37 | 466 | 569
United States |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total | 0 | 3,031 | 74 | 4,344
United States | Management realignment & integration |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance | 0 | 0 | 74 | 880
United States | Facility closures |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Inventory valuation adjustments | 0 | 1,568 | 0 | 1,568
Other expenses | 0 | 974 | 0 | 1,003
Severance | $ 0 | $ 489 | $ 0 | $ 893

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