NATURE OF OPERATIONS AND ACCOUNTING POLICIES - Assets HFS (Details)	12 Months Ended
	Dec. 26, 2015 USD ($) item	Dec. 27, 2014 USD ($) item	Dec. 28, 2013 USD ($)
Goshen, Indiana
Assets Held For Sale
Number of facilities held for sale		1
Number of parcels held for sales	2	2
Real Estate And Equipment
Evaluation of Impairment of Long-Lived Assets
Non-cash charges to reflect impairment | $	$ 0	$ 0	$ 0