Benefit Plans - Narrative (Details) $ in Thousands, £ in Millions			3 Months Ended				12 Months Ended
	Apr. 06, 2020 USD ($)	Apr. 06, 2020 GBP (£)	Jan. 01, 2022 USD ($)	Jan. 01, 2022 GBP (£)	Jun. 27, 2020 USD ($)	Jun. 27, 2020 GBP (£)	Dec. 29, 2022 USD ($)	Jan. 01, 2022 USD ($)	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)	Apr. 07, 2020 USD ($)
Defined Benefit Plan Disclosure
One-time non cash settlement charge								$ (19,855)	$ (236)	$ (260)
Prior service cost								179
Expected contributions			$ 2,600					2,600
Post-employment plan expense								2,100	2,000	$ 1,400
Benefit obligation			4,100					4,100	3,500
Amount recognized in other comprehensive income loss as a component of net periodic benefit cost								300	100
Defined benefit plan reclassification adjustments before tax								700	700
Forecast | Subsequent Event
Defined Benefit Plan Disclosure
Benefits paid							$ 1,800
Accrued Liabilities
Defined Benefit Plan Disclosure
Benefit obligation			1,500					1,500	1,200
Other Long-Term Liabilities
Defined Benefit Plan Disclosure
Benefit obligation			2,600					2,600	2,300
Foreign Plan
Defined Benefit Plan Disclosure
Increase to defined benefit obligation	$ 13,400	£ 10.9
Benefits paid					$ 10,400	£ 8.4
One-time non cash settlement charge			19,900	£ 14.9
Prior service cost			500	£ 0.4
Estimated reduction in benefit obligation											$ 47,100
Pension benefit obligation (in percent)											35.00%
Accumulated benefit obligation			$ 75,700					$ 75,700	$ 137,700