Stock-Based Compensation (Tables)

3 Months Ended

Dec. 29, 2012

Stock-Based Compensation Expense in Consolidated Statement of Income

The following presents stock-based compensation expense in the Company’s Consolidated Statements of Income:

	Three Months Ended
	December 29, 2012		December 24, 2011
Cost of revenues	$	1,834	$	1,107
Research and development		1,868		1,201
Selling and marketing		2,201		1,550
General and administrative		5,941		4,799
Restructuring		222		—
	$	12,066	$	8,657

Weighted-Average Assumptions Utilized to Value Stock Options

The Company uses a binomial model to determine the fair value of its stock options. The weighted-average assumptions utilized to value these stock options are indicated in the following table:

	Three Months Ended
	December 29, 2012			December 24, 2011
Risk-free interest rate		0.5	%		0.7	%
Expected volatility		43.7	%		46.9	%
Expected life (in years)		4.4			4.3
Dividend yield		—			—
Weighted average fair value of options granted	$	7.06		$	6.41