EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
EMPLOYEE BENEFIT PLANS [Abstract]
Expenses related to defined contribution plan	$ 0.7	$ 0.6	$ 2.5	$ 2.5
Future defined contribution plans			0.7
Supplemental discretionary contributions	$ 1.3	$ 0.9	3.7	$ 4.6
Supplemental contributions to the plan during the remainder of fiscal year			$ 1.3