INCENTIVE COMPENSATION (Schedule of Compensation Cost and Income Tax Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2016	Sep. 27, 2015	Sep. 25, 2016	Sep. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation costs	$ 3,535	$ 864	$ 5,404	$ 2,132
Income tax benefit	1,083	261	1,633	620
Cost of goods sold [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation costs	449	166	710	431
Selling, general and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation costs	$ 3,086	$ 698	$ 4,694	$ 1,701