Income Taxes - Deferred income taxes (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Deferred tax assets:
Capitalized research and development	$ 28,613	$ 27,402
Tax credit carryforwards	23,100	13,303
Net operating loss carryforwards	17,484	6,911
Intangible assets	6,447	7,188
Leases	6,388	6,584
Deferred income on shipments to distributors	2,153	6,465
Accrued liabilities	2,063	2,859
Other	6,130	3,072
Deferred tax assets	92,378	73,784
Less: Valuation allowance	(60,760)	(10,530)
Deferred tax assets, net	31,618	63,254
Deferred tax liabilities:
Intangible assets	13,718	13,916
Fixed assets	6,812	8,353
Leases	6,053	6,238
Prepaid expenses and other	3,555	4,534
Stock-based compensation	1,001	0
Deferred tax liabilities	31,139	33,041
Net deferred tax assets (liabilities)	$ 479	$ 30,213