Leases Rent Expense Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Operating Leased Assets [Line Items]
Minimum rent on real property	$ 53,085	$ 45,371	$ 43,650
Contingent rent on real property	5,011	3,494	3,548
Restaurant rent expense	58,096	48,865	47,198
Rent expense on operating leases	58,372	49,129	47,423
General and Administrative Expense [Member]
Operating Leased Assets [Line Items]
Rent expense on operating leases	$ 276	$ 264	$ 225