INCOME TAXES (Schedule of Income Tax Reconciliation) (Details)	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Income Tax Disclosure [Abstract]
Federal income tax rate	21.00%	35.00%	35.00%
State tax rate, net	3.60%	2.60%	2.20%
One-time transition tax	7.90%	0.00%	0.00%
Permanent items	1.40%	0.00%	0.80%
Domestic production activity	(0.00%)	(1.60%)	(1.20%)
Difference in U.S. statutory tax rate and foreign country effective tax rate	2.30%	(1.40%)	(2.80%)
Rate change	(2.50%)	(5.30%)	0.00%
Tax credits	(7.90%)	(0.50%)	(0.60%)
Change in reserve for unrecognized tax benefits	(1.70%)	(0.70%)	(0.20%)
Change in valuation allowance	2.70%	(1.20%)	(0.10%)
Other	(1.10%)	0.00%	0.60%
Total	25.70%	26.90%	33.70%