Commitments and Contingencies - Textual (Details) - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Long Term Purchase Commitment [Line Items]
Liabilities recorded for obligations	$ 0	$ 0
Rent expense	1,800,000	$ 1,800,000	$ 1,700,000
Inventories [Member]
Long Term Purchase Commitment [Line Items]
Purchase commitment	$ 50,700,000