Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 29, 2019	Dec. 28, 2018
Accrued Liabilities And Other Liabilities Current [Abstract]
Accrued compensation and benefits	$ 8,286	$ 5,012
Accrued bonuses	389	5,064
Accrued dividend payable		5,407
Acquisition earnout accruals	1,359	2,559
Deferred revenue	11,216	8,259
Accrued sales, use, franchise and VAT tax	2,221	3,077
Non-cash stock compensation accrual	525	872
Income tax payable	1,167	1,769
Other accrued expenses	1,776	2,479
Total accrued expenses and other liabilities	$ 26,939	$ 34,498