Restructuring - Canadian Restructuring Plan - Restructuring Reserves Roll Forward (Details) - Hman Group holdings Inc and subsidiaries - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 27, 2021	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Severance and related expense
Restructuring Charges		$ 4,830	$ 9,667	$ 8,261
Canadian Restructuring Plan
Severance and related expense
Beginning balance	$ 309	1,121
Restructuring Charges	30	707
Cash Paid	(170)	(1,519)
Ending balance	169	309	1,121
Canadian Restructuring Plan \| Revision of Prior Period, Adjustment [Member]
Severance and related expense
Beginning balance	$ 1,148	1,121	1,537
Restructuring Charges		707	617
Cash Paid		(680)	(1,033)
Ending balance		$ 1,148	$ 1,121	$ 1,537

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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-Publisher FASB
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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