RESTRUCTURING (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 26, 2015	Apr. 02, 2016	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Restructuring Cost and Reserve [Line Items]
Impairment of property, plant and equipment		$ 9,100
Expected cost		26,000
Expected savings		40,000
Restructuring charges incurred		23,055	$ 36,863	$ 49,051
Restructuring charges in next twelve months		8,100
Restructuring liability		8,752	16,612	23,636	$ 3,262
Transformation costs		19,229	32,834	35,655
Changes in fair value of contingent consideration		4,727	2,918	(45)
Asset Reclassified to Held for Sale [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of property, plant and equipment		3,000
SOLX Intangible Assets [Member]
Restructuring Cost and Reserve [Line Items]
Changes in fair value of contingent consideration	$ 4,900	4,900	2,900
Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Expected cost		17,000
Restructuring charges incurred		10,707	19,879	31,492
Restructuring liability		8,752	16,393	22,908	3,089
Other costs
Restructuring Cost and Reserve [Line Items]
Expected cost		9,000
Restructuring charges incurred		7,846	15,362	14,254
Restructuring liability		0	$ 219	$ 728	$ 173
VCC Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred		$ 100,100