INCOME TAXES (Schedule of Income Tax Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Income Tax Disclosure [Abstract]
Federal income tax rate	35.00%	35.00%	35.00%
State tax rate, net	2.60%	2.40%	2.30%
Domestic production activity	(1.60%)	(1.30%)	(1.90%)
Difference in U.S. statutory tax rate and foreign country effective tax rate	(1.40%)	(1.40%)	(0.90%)
Rate change	(5.30%)	0.00%	0.00%
Tax credits	(0.50%)	(0.60%)	(0.70%)
Change in reserve for unrecognized tax benefits	(0.70%)	(0.20%)	(0.10%)
Change in valuation allowance	(1.20%)	(0.10%)	0.00%
Other	0.00%	0.80%	1.20%
Total	26.90%	34.60%	34.90%