GOODWILL AND OTHER INTANGIBLE ASSETS Intangible Assets (Details) (USD $)	12 Months Ended
	Mar. 31, 2012 Y	Apr. 02, 2011 Y	Apr. 03, 2010
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 151,522,000	$ 145,616,000
Accumulated Amortization	54,973,000	43,827,000
Weighted Average Useful Life (In years)	11	11
Amortization of Intangible Assets	11,400,000	11,100,000	7,700,000
Future amortization expense, year one	11,000,000
Future amortization expense, year two	10,700,000
Future amortization expense, year three	10,100,000
Future amortization expense, year four	9,700,000
Future amortization expense, year five	9,400,000
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,463,000	12,704,000
Accumulated Amortization	7,843,000	6,827,000
Weighted Average Useful Life (In years)	11	11
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,597,000	14,506,000
Accumulated Amortization	1,394,000	656,000
Weighted Average Useful Life (In years)	6	6
Other Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	42,693,000	43,244,000
Accumulated Amortization	20,120,000	17,391,000
Weighted Average Useful Life (In years)	11	11
Customer Contracts and Related Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	69,361,000	69,908,000
Accumulated Amortization	23,639,000	17,740,000
Weighted Average Useful Life (In years)	12	12
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,408,000	5,254,000
Accumulated Amortization	$ 1,977,000	$ 1,213,000
Weighted Average Useful Life (In years)	10	10
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (In years)	5
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (In years)	20