IDENTIFIED INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 5.7	$ 5.7	$ 5.7
Expected amortization expense, 2016	8.9
Expected amortization expense, 2017	8.0
Expected amortization expense, 2018	7.7
Expected amortization expense, 2019	6.1
Expected amortization expense, 2020	$ 2.1