Litigation, Commitments and Contingencies - Leases (Details) $ in Millions	12 Months Ended
	Dec. 27, 2015 USD ($) item	Dec. 28, 2014 USD ($)	Dec. 29, 2013 USD ($)
Lease disclosures
Total lease expense	$ 36.2	$ 34.7	$ 33.2
Payments received from sublease	$ 6.5	$ 6.7	$ 4.9
Buildings and improvements
Lease disclosures
Operating leases, average term in years	5 years
Number of renewals | item	1
Distribution Subsidiary, PJ Food Service Inc. ("PJFS") | Tractors and trailers
Lease disclosures
Operating leases, average term in years	7 years