Restructuring - United States Restructuring Plan - Charges Incurred (Details) - Hman Group holdings Inc and subsidiaries - United States Restructuring Plan - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2020	Dec. 28, 2019
Restructuring Cost and Reserve [Line Items]
Total	$ 4,779	$ 9,527
Management Realignment And Integration
Restructuring Cost and Reserve [Line Items]
Inventory valuation adjustments		5,707
Severance	886	$ 3,820
Exit of certain lines of business
Restructuring Cost and Reserve [Line Items]
Inventory valuation adjustments	1,568
Severance	903
Other expense	$ 1,422

Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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