Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2026	Dec. 27, 2024	Dec. 29, 2023
Amount
Taxes at federal statutory tax rate	$ (17,275)	$ (1,901)	$ 7,076
State taxes, net of federal income tax benefit	22	(330)	440
Effect of changes in tax laws or rates enacted in the current period	0
Effect of cross-border tax laws	587
Tax credits	62	(277)	(930)
Changes in valuation allowances	7,334	4,060	(4,233)
Equity compensation	5,259	2,237	1,035
Other	153
Foreign rate differential		(3,902)	(7,611)
Foreign income inclusion		9,659	16,922
Return to provision adjustment		100	(284)
Changes in unrecognized tax benefits	(633)	1,450
Non-deductible expenses		163	134
Other	(13)	(103)	(200)
Provision (benefit) for income taxes	$ (1,815)	$ 11,156	$ 12,349
Percent
Taxes at federal statutory tax rate, Percent	21.00%	21.00%	21.00%
State taxes, net of federal income tax benefit, Percent	0.00%	3.60%	1.30%
Foreign rate differential, Percent		43.10%	(22.60%)
Effect of changes in tax laws or rates enacted in the current period, Percent	0.00%
Effect of cross-border tax laws, Percent	(0.70%)
Tax credits, Percent	(0.10%)	3.10%	(2.80%)
Changes in valuation allowance, Percent	(8.90%)	(44.90%)	(12.60%)
Equity compensation, Percent	(6.40%)	(24.70%)	3.10%
Other, Percent	(0.20%)
Other, Percent	0.00%	1.20%	(0.60%)
Foreign income inclusion, Percent		(106.70%)	50.20%
Return to provision adjustment, Percent		(1.10%)	(0.80%)
Changes in unrecognized tax benefits, Percent	0.80%	(16.00%)	0.00%
Non-deductible expenses, Percent		(1.80%)	0.40%
Total income tax expense, Percent	2.20%	(123.20%)	36.60%
Switzerland
Amount
Foreign rate differential	$ 1,898
Other	$ 331
Percent
Foreign rate differential, Percent	(2.30%)
Other, Percent	(0.40%)
Other Foreign Jurisdictions
Amount
Other	$ 460
Percent
Other, Percent	(0.60%)