Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Section 50
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- Definition

Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan.

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from settlement and curtailment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Other Comprehensive Income (Loss) - Narratives (Details) $ in Thousands, £ in Millions		3 Months Ended		12 Months Ended
	Apr. 06, 2020 USD ($)	Jan. 01, 2022 USD ($)	Jan. 01, 2022 GBP (£)	Jan. 01, 2022 USD ($)	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)
Other Comprehensive Income (Loss)
Benefit obligation, unamortized actuarial loss	$ 13,400
One-time non cash settlement charge				$ (19,855)	$ (236)	$ (260)
Prior service cost				$ 179
Foreign Plan
Other Comprehensive Income (Loss)
One-time non cash settlement charge		$ 19,900	£ 14.9
Prior service cost		$ 500	£ 0.4