Common Stock and Stock Plans (Tables)

12 Months Ended

Mar. 30, 2012

Common Stock and Stock Plans [Abstract]

Summary of stock-based compensation expense

Total stock-based compensation expense recognized in accordance with the authoritative guidance for share-based payments was as follows:

	Fiscal Years Ended
	March 30, 2012			April 1, 2011			April 2, 2010
	(In thousands)
Stock-based compensation expense before taxes	$	21,382		$	17,440		$	12,212
Related income tax benefits		(8,010	)		(6,511	)		(4,429	)
Stock-based compensation expense, net of taxes	$	13,372		$	10,929		$	7,783

Summary of stock options and employee stock purchase plan weighted average assumptions

Stock options and employee stock purchase plan. The Company’s employee stock options typically have a simple four-year vesting schedule and a six to ten year contractual term. The weighted average estimated fair value of employee stock options granted and employee stock purchase plan shares issued during fiscal year 2012 was $17.36 and $11.74 per share, respectively, during fiscal year 2011 was $14.24 and $8.55 per share, respectively, and during fiscal year 2010 was $10.55 and $7.84 per share, respectively, using the Black-Scholes model with the following weighted average assumptions (annualized percentages):

	Employee Stock Options									Employee Stock Purchase Plan
	Fiscal Year 2012			Fiscal Year 2011			Fiscal Year 2010			Fiscal Year 2012			Fiscal Year 2011			Fiscal Year 2010
Volatility		41.4	%		42.2	%		43.0	%		38.4	%		28.3	%		43.7	%
Risk-free interest rate		0.9	%		0.9	%		1.6	%		0.1	%		0.2	%		0.3	%
Dividend yield		0.0	%		0.0	%		0.0	%		0.0	%		0.0	%		0.0	%
Expected life		5.5 years			4.2 years			4.2 years			0.5 years			0.5 years			0.5 years

Summary of employee stock option activity

A summary of employee stock option activity for fiscal year 2012 is presented below:

	Number of Shares			Weighted Average Exercise Price per Share		Weighted  Average Remaining Contractual Term in Years		Aggregate  Intrinsic Value (In thousands)
Outstanding at April 1, 2011		3,839,468		$	22.66
Options granted		368,000			44.73
Options canceled		(10,200	)		32.11
Options exercised		(795,634	)		18.45
Outstanding at March 30, 2012		3,401,634		$	26.00		2.62	$	75,556
Vested and exercisable at March 30, 2012		2,631,472		$	22.27		2.01	$	68,273

Summary of transactions related to the Company's stock options

Transactions related to the Company’s stock options are summarized as follows:

	Number of Shares			Weighted Average Exercise Price per Share
Outstanding at April 3, 2009		5,449,049		$	20.12
Options granted		383,900			29.05
Options canceled		(94,874	)		29.06
Options exercised		(1,019,899	)		19.06
Outstanding at April 2, 2010		4,718,176			20.90
Options granted		266,250			41.26
Options canceled		(20,543	)		27.40
Options exercised		(1,124,415	)		19.60
Outstanding at April 1, 2011		3,839,468			22.66
Options granted		368,000			44.73
Options canceled		(10,200	)		32.11
Options exercised		(795,634	)		18.45
Outstanding at March 30, 2012		3,401,634		$	26.00

Summary of restricted stock unit activity

The per unit weighted average grant date fair value of restricted stock units granted during fiscal years 2012, 2011 and 2010 was $44.28, $41.48 and $29.19, respectively. A summary of restricted stock unit activity for fiscal year 2012 is presented below:

	Number of Restricted Stock Units			Weighted Average Grant Date Fair Value per Share
Outstanding at April 1, 2011		1,549,463		$	32.41
Awarded		684,692			44.28
Forfeited		(36,474	)		33.07
Released		(472,311	)		44.11
Outstanding at March 30, 2012		1,725,370		$	37.57
Vested and deferred at March 30, 2012		69,601		$	26.71

Summary of transactions related to the Company's restricted stock units

Transactions related to the Company’s restricted stock units are summarized as follows:

	Number of Restricted Stock Units
Outstanding at April 3, 2009		814,211
Awarded		831,250
Forfeited		(21,807	)
Released		(234,039	)
Outstanding at April 2, 2010		1,389,615
Awarded		630,056
Forfeited		(37,035	)
Released		(433,173	)
Outstanding at April 1, 2011		1,549,463
Awarded		684,692
Forfeited		(36,474	)
Released		(472,311	)
Outstanding at March 30, 2012		1,725,370