Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Apr. 03, 2010
Consolidated Statements of Income [Abstract]
Net revenues	$ 2,240,736	$ 2,369,445	$ 1,833,554
Cost of revenues	786,078	819,558	671,803
Gross margin	1,454,658	1,549,887	1,161,751
Operating expenses:
Research and development	435,276	392,482	369,485
Selling, general and administrative	365,272	350,626	327,560
Amortization of acquisition-related intangibles	7,568	1,034	2,493
Restructuring charges	3,369	10,346	30,064
Litigation	15,400
Total operating expenses	826,885	754,488	729,602
Operating income	627,773	795,399	432,149
Impairment loss on investments	0	5,904	3,805
Interest and other expense, net	30,722	18,415	6,579
Income before income taxes	597,051	771,080	421,765
Provision for income taxes	66,972	129,205	64,281
Net income	$ 530,079	$ 641,875	$ 357,484
Net income per common share:
Basic	$ 2.01	$ 2.43	$ 1.30
Diluted	$ 1.95	$ 2.39	$ 1.29
Shares used in per share calculations:
Basic	263,783	264,094	276,012
Diluted	272,157	268,061	276,953