Stockholders' Equity And Stock-Based Compensation (Tables)

12 Months Ended

Sep. 24, 2011

Stockholders' Equity And Stock-Based Compensation [Abstract]

Schedule Of Information Pertaining To Stock Options Granted And Related Assumptions

	Years ended
	September 24, 2011			September 25, 2010			September 26, 2009
Options granted		2,249			2,858			3,007
Weighted-average exercise price	$	17.15		$	15.65		$	14.43
Weighted-average grant date fair value	$	6.16		$	5.87		$	5.40
Assumptions:
Risk-free interest rates		1.0	%		1.8	%		2.0	%
Expected life (in years)		4.2			3.9			4.0
Expected volatility		45	%		47	%		46	%
Dividend yield		—			—			—

Schedule Of Stock-Based Compensation Expense

	2011		2010		2009
Cost of revenues	$	4,602	$	4,332	$	3,522
Research and development		4,852		4,011		3,960
Selling and marketing		5,954		5,313		5,161
General and administrative		20,064		20,504		20,296
	$	35,472	$	34,160	$	32,939

Summary Of All Stock Option Activity

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life in Years		Aggregate Intrinsic Value
Options outstanding at September 25, 2010		15,545		$	16.70
Granted		2,249			17.15
Cancelled/forfeited		(537	)		19.89
Exercised		(1,779	)		13.43			$	12,265
Options outstanding at September 24, 2011		15,478		$	17.01		4.11	$	30,455
Options exercisable at September 24, 2011		8,964		$	16.75		3.37	$	28,418
Options vested and expected to vest at September 24, 2011 (1)		15,412		$	17.01		4.11	$	30,437

(1) This represents the number of vested stock options as of September 24, 2011 plus the unvested outstanding options at September 24, 2011 expected to vest in the future, adjusted for estimated forfeitures.

Summary Of Restricted Stock Unit Activity

Non-vested Shares	Number of Shares			Weighted-Average Grant-Date Fair Value
Non-vested at September 25, 2010		3,676		$	19.90
Granted.		1,236			16.83
Vested		(1,675	)		25.76
Forfeited		(125	)		16.74
Non-vested at September 24, 2011		3,112		$	15.67