Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 26, 2019	Jan. 02, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 223,542	$ 218,855	$ 0
Current portion of operating lease liabilities	20,146	17,303	0
Operating lease liabilities, excluding current portion	217,967	$ 213,313	0
Total operating lease liabilities	238,113		0
Buildings under finance leases	1,061		3,370
Accumulated depreciation	(126)		(2,193)
Finance lease asset, net	935		1,177
Current portion of finance lease obligations, other debt and deemed landlord financing liabilities	428		510
Long-term debt, finance lease obligations, other debt and deemed landlord financing liabilities, excluding current portion, net	616		757
Total finance lease obligations	$ 1,044		$ 1,267