Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Operating Leases, Rent Expense, Net [Abstract]
Rent expense	$ 33,717	$ 32,089	$ 28,216
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating leases, future minimum payments, Current Year	26,252
Operating leases, future minimum payments, due in two years	23,130
Operating leases, future minimum payments, due in three years	19,778
Operating leases, future minimum payments, due in four years	14,243
Operating leases, future minimum payments, due in five years	11,510
Operating leases, future minimum payments, due thereafter	17,100
Operating leases, future minimum payments due	$ 112,013