Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Operating Leases, Rent Expense, Net [Abstract]
Rent expense	$ 32,089	$ 28,216	$ 27,406
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating leases, future minimum payments, Current Year	28,090
Operating leases, future minimum payments, due in two years	20,641
Operating leases, future minimum payments, due in three years	12,514
Operating leases, future minimum payments, due in four years	10,013
Operating leases, future minimum payments, due in five years	7,042
Operating leases, future minimum payments, due thereafter	21,721
Operating leases, future minimum payments due	$ 100,021