Other Income (Expense), Net - Schedule of Other Income (Expense), Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 26, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income Expense [Abstract]
Foreign currency exchange gains (losses), net	$ (3,070)		$ 676	$ (255)
Gain on casualty insurance claim	0		0	302
Other	362		104	9
Total other income (expense), net	$ (2,708)	$ (2,708)	$ 780	$ 56