Consolidated Statements of Stockholders Equity and Comprehensive Income (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning Balance at Mar. 29, 2009	$ 626,545	$ 202	$ 712,064	$ 1,193,727	$ 634	$ (1,280,082)
Beginning Balance, Shares at Mar. 29, 2009		119,531
Net income	54,948			54,948
Change in unrealized gains and losses on marketable securities, net of income taxes	572				572
Comprehensive income	55,520
Issuance of common stock under stock-based awards, Amount	31,500	3	31,497
Issuance of common stock under stock-based awards, Shares		2,772
Decrease (increase) in excess tax benefits from stock-based awards	(1,278)		(1,278)
Stock-based compensation	35,232		35,232
Common stock issued related to business acquisition	1,338		1,338
Common stock issued related to business acquisition, Shares	112	112
Purchases of treasury stock	(165,518)					(165,518)
Purchases of treasury stock, Shares		(10,108)
Ending Balance at Mar. 28, 2010	583,339	205	778,853	1,248,675	1,206	(1,445,600)
Ending Balance, Shares at Mar. 28, 2010		112,307
Net income	139,090			139,090
Change in unrealized gains and losses on marketable securities, net of income taxes	(592)				(592)
Comprehensive income	138,498
Issuance of common stock under stock-based awards, Amount	29,310	3	29,307
Issuance of common stock under stock-based awards, Shares		3,121
Decrease (increase) in excess tax benefits from stock-based awards	805		805
Stock-based compensation	35,007		35,007
Common stock issued related to business acquisition	574		574
Common stock issued related to business acquisition, Shares	28	28
Purchases of treasury stock	(186,369)					(186,369)
Purchases of treasury stock, Shares	(10,700)	(10,739)
Ending Balance at Apr. 03, 2011	601,164	208	844,546	1,387,765	614	(1,631,969)
Ending Balance, Shares at Apr. 03, 2011		104,717
Net income	229,436			229,436
Change in unrealized gains and losses on marketable securities, net of income taxes	419				419
Comprehensive income	229,855
Issuance of common stock under stock-based awards, Amount	24,488	3	24,485
Issuance of common stock under stock-based awards, Shares		2,646
Decrease (increase) in excess tax benefits from stock-based awards	111		111
Stock-based compensation	32,592		32,592
Purchases of treasury stock	(128,367)					(128,367)
Purchases of treasury stock, Shares	(8,600)	(8,586)
Ending Balance at Apr. 01, 2012	$ 759,843	$ 211	$ 901,734	$ 1,617,201	$ 1,033	$ (1,760,336)
Ending Balance, Shares at Apr. 01, 2012		98,777