Basis of Presentation Basis of Presentation Schedule of Prior Period Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Prior Period Adjustments Restatement
Cost of sales	$ 138,154	$ 130,581	$ 270,373	$ 255,124
Franchise support and other costs	7,031	3,789	13,204	7,432
General and administrative	49,163	50,059	99,519	101,373
Other operating income, net	$ (1,767)	(2,089)	$ (2,930)	(3,807)
Total of income statement line items affected by prior period reclassifications		182,340		360,122
Prior period reclassifications to Franchise support and other costs		0		0
Prior period reclassifications for Restaurant operational costs		0		0
Previously Reported
Prior Period Adjustments Restatement
Cost of sales		129,360		252,767
Franchise support and other costs		0		0
General and administrative		51,280		103,730
Other operating income, net		1,700		3,625
Total of income statement line items affected by prior period reclassifications		182,340		360,122
Cost of sales
Prior Period Adjustments Restatement
Prior period reclassifications to Franchise support and other costs		0		0
Prior period reclassifications for Restaurant operational costs		1,221		2,357
Franchise support and other costs
Prior Period Adjustments Restatement
Prior period reclassifications to Franchise support and other costs		3,789		7,432
Prior period reclassifications for Restaurant operational costs		0		0
General and administrative
Prior Period Adjustments Restatement
Prior period reclassifications to Franchise support and other costs		0		0
Prior period reclassifications for Restaurant operational costs		(1,221)		(2,357)
Other operating expense (income), net
Prior Period Adjustments Restatement
Prior period reclassifications to Franchise support and other costs		(3,789)		(7,432)
Prior period reclassifications for Restaurant operational costs		$ 0		$ 0