Acquisition of Peter Piper Pizza - Narrative (Details) (Peter Piper Pizza [Member], USD $)	0 Months Ended	10 Months Ended	12 Months Ended
	Oct. 15, 2014	Dec. 28, 2014	Dec. 28, 2014	Dec. 29, 2013	Oct. 16, 2014	Oct. 15, 2014
Peter Piper Pizza [Member]
Business Acquisition [Line Items]
Acquisition price	$ 113,100,000
Cash and cash equivalents					5,267,000
Transaction costs	3,600,000					3,600,000
Goodwill expected to be tax deductible		300,000	300,000
Business Combination, Acquisition Related Costs of Acquiree	1,600,000
Total revenues		12,300,000	887,018,000	885,476,000
Loss from operations		$ (600,000)	$ 5,758,000	$ (1,328,000)