Income Taxes - Tax rate reconciliation (Details)	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Reconciliation of federal statutory tax rate to effective tax rate
Federal statutory rate	21.00%	21.00%	21.00%
Foreign tax rate benefit	(33.20%)	(6.20%)	(16.40%)
(Nondeductible) nontaxable foreign items	(25.50%)	4.40%	(7.20%)
GILTI and Subpart F income, net of foreign tax credits	(24.20%)	16.50%	(2.40%)
Base erosion and anti-abuse tax	(7.40%)
(Nondeductible) nontaxable domestic items	(3.60%)	0.70%	(2.80%)
Foreign withholding taxes	(2.20%)	0.40%
State tax expense	(1.50%)	1.20%	(0.80%)
Change in prior period valuation allowance	(1.50%)	(0.30%)	(10.50%)
Net operating loss not benefited			(6.00%)
Other tax effects of equity compensation	1.10%	(0.30%)	0.50%
Nondeductible officer compensation	1.30%	2.00%	(10.30%)
Excess tax benefit of stock-based compensation	4.00%	(1.10%)	3.70%
Return to provision adjustments	16.50%	(2.00%)	0.80%
Research and development tax credits	26.40%	(5.30%)	0.10%
Other	(1.10%)	(1.40%)	0.10%
Effective tax rate	(29.90%)	29.60%	(30.20%)