Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 26, 2020	Dec. 27, 2019
Accrued Liabilities And Other Liabilities Current [Abstract]
Accrued compensation and benefits	$ 6,644	$ 3,987
Deferred employer's portion of social security taxes	1,803
Accrued bonuses	176	3,932
Accrued dividend payable	3,047	5,791
Restructuring liability	3,231	1,584
Deferred revenue	11,730	9,583
Accrued sales, use, franchise and VAT tax	2,876	2,460
Non-cash stock compensation accrual	80	339
Income tax payable	2,728	2,611
Other accrued expenses	2,495	2,195
Total accrued expenses and other liabilities	$ 34,810	$ 32,482