Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 01, 2012	Apr. 03, 2011
Current assets:
Cash and cash equivalents	$ 164,516	$ 147,780
Marketable securities	373,439	236,296
Accounts receivable, less allowance for doubtful accounts of $1,446 and $1,536 as of April 1, 2012 and April 3, 2011, respectively	76,588	70,134
Inventories	19,724	26,931
Deferred tax assets	16,780	17,754
Other current assets	35,842	20,753
Total current assets	686,889	519,648
Property and equipment, net	78,010	77,134
Goodwill	110,976	119,748
Purchased intangible assets, net	5,277	12,694
Deferred tax assets	30,558	25,333
Other assets	1,708	2,650
Total assets	913,418	757,207
Current liabilities:
Accounts payable	34,198	34,816
Accrued compensation	28,326	25,858
Accrued taxes	2,799	6,012
Deferred revenue	6,504	10,431
Other current liabilities	9,390	5,221
Total current liabilities	81,217	82,338
Accrued taxes	64,853	62,565
Other liabilities	7,505	11,140
Total liabilities	153,575	156,043
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 1,000,000 shares authorized; no shares issued and outstanding
Common stock, $0.001 par value; 500,000,000 shares authorized; 210,688,000 and 208,042,000 shares issued as of April 1, 2012 and April 3, 2011, respectively	211	208
Additional paid-in capital	901,734	844,546
Retained earnings	1,617,201	1,387,765
Accumulated other comprehensive income	1,033	614
Treasury stock, at cost: 111,911,000 and 103,325,000 shares as of April 1, 2012 and April 3, 2011, respectively	(1,760,336)	(1,631,969)
Total stockholders' equity	759,843	601,164
Total liabilities and stockholders' equity	$ 913,418	$ 757,207