Income Taxes - Reconciliation of Income Tax at Federal Statutory Tax Rates to Income Tax Expense (Benefit) From Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Effective rate reconciliation:
U.S. federal tax expense	$ (3,791)	$ (6,527)	$ 15,819
State income taxes, net	(781)	(1,713)	752
Permanent items	1,508	928	248
Foreign rate differential	(745)	(1,190)	(2,595)
Tax holiday	(7,078)	(4,962)	(11,676)
Credits	(1,683)	(1,661)	(1,882)
Tax contingencies	475	(331)	462
Share-based compensation	(441)	(122)	166
Withholding tax	815	717	1,170
Other, net	244	(763)	112
Valuation allowance	14,243	27,531	(50)
Income tax expense	$ 2,766	$ 11,907	$ 2,526