Restructuring - Schedule of Restructuring-related Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended		21 Months Ended
	Sep. 28, 2024	Sep. 28, 2024	Dec. 30, 2023	Dec. 31, 2022	Sep. 28, 2024
2024 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 14,812	$ 14,812
2024 Plan | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Restructuring charges		14,812
Payments		(5,298)
Ending Balance	9,514	9,514			$ 9,514
2024 Plan | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Restructuring charges		14,410
Payments		(4,896)
Ending Balance	9,514	9,514			9,514
2024 Plan | Other Cash Restructuring Charges | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Restructuring charges		402
Payments		(402)
2023 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(749)	6,654	$ 53,743	$ 13,608
2023 Plan | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		26,758	13,608		13,608
Restructuring charges		5,491	47,106
Payments		(18,743)	(33,956)
Change in estimate		1,138
Ending Balance	14,644	14,644	26,758	13,608	14,644
2023 Plan | Other Cash Restructuring Charges | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		344
Restructuring charges		581	1,577
Payments		(925)	(1,233)
Ending Balance			344
2023 Plan | Real Estate Restructuring | Lease Termination Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		156
Restructuring charges			12,924
Payments		(21)	(12,768)
Change in estimate		(135)
Ending Balance			156
2023 Plan | Real Estate Restructuring | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		2,663	1,798		1,798
Restructuring charges		2,363	5,678
Payments		(1,273)	(4,813)
Change in estimate		1,262
Ending Balance	5,015	5,015	2,663	1,798	5,015
2023 Plan | Organizational Restructuring | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		23,595	11,810		11,810
Restructuring charges		2,547	26,927
Payments		(16,524)	(15,142)
Change in estimate		11
Ending Balance	9,629	9,629	23,595	11,810	9,629
2022 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges				27,181
2022 Plan | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		941	9,803		9,803
Restructuring charges				22,589
Payments		(844)	(9,997)	(12,786)
Change in estimate		56	1,135
Ending Balance	153	153	941	9,803	153
2022 Plan | Lease Termination Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance			547		547
Restructuring charges				2,424
Payments			(122)	(1,877)
Change in estimate			(425)
Ending Balance				547
2022 Plan | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance		941	8,261		8,261
Restructuring charges				19,170
Payments		(844)	(8,880)	(10,909)
Change in estimate		56	1,560
Ending Balance	$ 153	$ 153	941	8,261	153
2022 Plan | Other Cash Restructuring Charges | Cash Restructuring-Related Liabilities Roll-Forward
Restructuring Cost and Reserve [Line Items]
Beginning Balance			995		$ 995
Restructuring charges				995
Payments			$ (995)
Ending Balance				$ 995