Share-Based Compensation - Summary of Share-Based Compensation (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense		$ 4,274	$ 2,548	$ 12,077	$ 4,677
Share-based compensation expense, net of tax		4,274	2,548	12,077	4,677
Stock Appreciation Rights (SARs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense		2,178	1,893	4,211	3,374
Growth Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense		648	$ 655	1,303	$ 1,303
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense		1,448		6,091
Employer-related payroll expense [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense	[1]	$ 0		$ 472

[1] Relates to national insurance tax in the UK. These amounts were settled in cash and are not included in additional paid-in capital or as an adjustment to reconcile net loss to net cash used in operating activities in the unaudited condensed consolidated statements of cash flows.