Segment Information - Segment Information by Geographic Area (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 04, 2025 USD ($)	Sep. 28, 2024 USD ($)	Oct. 04, 2025 USD ($) segment	Sep. 28, 2024 USD ($)	Dec. 28, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment			1
Revenues	$ 205,999	$ 166,395	$ 576,558	$ 418,137
Property and equipment, net	128,323		128,323		$ 132,136
United States
Segment Reporting Information [Line Items]
Revenues	20,701	14,710	61,939	30,779
Property and equipment, net	107,204		107,204		107,612
China
Segment Reporting Information [Line Items]
Revenues	67,153	61,939	187,055	137,479
Taiwan
Segment Reporting Information [Line Items]
Revenues	35,507	19,778	95,796	50,533
Rest of world
Segment Reporting Information [Line Items]
Revenues	82,638	$ 69,968	231,768	$ 199,346
Property and equipment, net	$ 21,119		$ 21,119		$ 24,524