Stock-Based Compensation (Tables)

12 Months Ended

Apr. 01, 2012

Stock-Based Compensation [Abstract]

Stock Option Activity

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
	(In thousands)							(In thousands)
Outstanding at March 29, 2009		25,940		$	20.58
Granted		3,853			14.06
Exercised		(1,878	)		14.89
Forfeited (cancelled pre-vesting)		(499	)		15.54
Expired (cancelled post-vesting)		(3,160	)		25.06
Outstanding at March 28, 2010		24,256			19.50
Granted		2,829			17.74
Exercised		(2,091	)		14.18
Forfeited (cancelled pre-vesting)		(708	)		15.42
Expired (cancelled post-vesting)		(2,430	)		32.13
Outstanding at April 3, 2011		21,856			18.51
Granted		1,630			15.73
Exercised		(1,544	)		14.83
Forfeited (cancelled pre-vesting)		(686	)		15.86
Expired (cancelled post-vesting)		(2,245	)		24.93
Outstanding at April 1, 2012		19,011		$	17.91		4.8	$	24,634
Vested and expected to vest at April 1, 2012		18,683		$	17.93		4.8	$	24,196
Exercisable at April 1, 2012		15,161		$	18.40		3.9	$	17,591

Summary of restricted stock unit

	Number of Shares			Weighted- Average Grant Date Fair Value
	(In thousands)
Outstanding and unvested at March 29, 2009		1,693		$	16.18
Granted		1,488			13.85
Vested		(533	)		16.65
Forfeited		(134	)		15.85
Outstanding and unvested at March 28, 2010		2,514			14.78
Granted		965			17.79
Vested		(959	)		15.31
Forfeited		(249	)		15.11
Outstanding and unvested at April 3, 2011		2,271			15.80
Granted		1,656			15.63
Vested		(879	)		15.58
Forfeited		(362	)		15.82
Outstanding and unvested at April 1, 2012		2,686		$	15.77

Summary of Stock-Based Compensation Expense

	2012		2011		2010
	(In thousands)
Cost of revenues	$	2,506	$	2,247	$	2,276
Engineering and development		14,199		14,222		14,094
Sales and marketing		6,667		6,768		6,182
General and administrative		8,316		8,398		7,910
Total continuing operations		31,688		31,635		30,462
Discontinued operations		904		3,372		5,232
	$	32,592	$	35,007	$	35,694

Weighted-average fair values and underlying assumptions

	2012						2011						2010
	Stock Options			Employee Stock Purchase Plan			Stock Options			Employee Stock Purchase Plan			Stock Options			Employee Stock Purchase Plan
Fair value	$	5.73		$	3.49		$	6.62		$	3.95		$	5.31		$	3.50
Expected volatility		36	%		36	%		38	%		36	%		38	%		42	%
Risk-free interest rate		1.8	%		0.1	%		2.1	%		0.2	%		2.2	%		0.1	%
Expected life (years)		5.5			0.25			5.3			0.25			5.0			0.25
Dividend yield		—			—			—			—			—			—