SEGMENT INFORMATION (Enterprise Wide Disclosures about Product and Services) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Apr. 03, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 727,844	$ 676,694	$ 645,430
Total Assets	911,135	833,264	764,305
Long-Lived Assets	373,264	372,684	364,361
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	352,160	316,447	301,774
Total Assets	634,171	582,733	487,955
Long-Lived Assets	305,370	305,305	313,241
Other North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	512	908	2,191
Total Assets	15,365	15,903	22,941
Long-Lived Assets	12,796	12,715	16,800
Total North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	352,672	317,355	303,965
Total Assets	649,536	598,636	510,896
Long-Lived Assets	318,166	318,020	330,041
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	124,381	110,263	109,573
Total Assets	50,509	47,156	42,438
Long-Lived Assets	13,128	12,391	11,230
Other Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	67,223	61,594	51,324
Total Assets	27,353	18,164	20,928
Long-Lived Assets	3,961	4,181	3,805
Total Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	191,604	171,857	160,897
Total Assets	77,862	65,320	63,366
Long-Lived Assets	17,089	16,572	15,035
Total Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	183,568	187,482	180,568
Total Assets	183,737	169,308	190,043
Long-Lived Assets	$ 38,009	$ 38,092	$ 19,285