Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 29, 2019	Dec. 30, 2018
Leases [Abstract]
Operating lease right-of-use assets	$ 110,051	$ 0
Current portion of operating lease liabilities	15,780	0
Operating lease liabilities	91,480	$ 0
Total operating lease liabilities	107,260
Property and equipment	3,951
Accrued expenses	1,150
Other long-term liabilities	972
Total finance lease liabilities	$ 2,122