CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Apr. 03, 2011
Net revenues	$ 484,538	$ 558,608	$ 558,375
Cost of revenues	159,180	177,704	176,959
Gross profit	325,358	380,904	381,416
Operating expenses:
Engineering and development	156,097	138,768	125,219
Sales and marketing	78,512	77,370	73,965
General and administrative	32,899	35,299	34,148
Special charges			373
Total operating expenses	267,508	251,437	233,705
Operating income	57,850	129,467	147,711
Interest and other income, net	4,007	3,959	5,187
Income from continuing operations before income taxes	61,857	133,426	152,898
Income tax expense (benefit)	(11,704)	13,983	11,552
Income from continuing operations	73,561	119,443	141,346
Discontinued operations:
Income (loss) from operations, net of income taxes	(425)	910	(2,256)
Gain on sale, net of income taxes		109,083
Income (loss) from discontinued operations	(425)	109,993	(2,256)
Net income	$ 73,136	$ 229,436	$ 139,090
Income from continuing operations per share:
Basic	$ 0.79	$ 1.17	$ 1.31
Diluted	$ 0.78	$ 1.16	$ 1.29
Income (loss) from discontinued operations per share:
Basic	$ (0.01)	$ 1.08	$ (0.02)
Diluted		$ 1.07	$ (0.02)
Net income per share:
Basic	$ 0.78	$ 2.25	$ 1.29
Diluted	$ 0.78	$ 2.23	$ 1.27
Number of shares used in per share calculations:
Basic	93,560	101,766	107,647
Diluted	93,998	102,711	109,192