Stock-Based Compensation (Tables)

6 Months Ended

Mar. 29, 2014

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense in Consolidated Statements of Operations

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


	Three Months Ended				Six Months Ended
	March 29, 2014		March 30, 2013		March 29, 2014		March 30, 2013
Cost of revenues	$	2,133	$	1,723	$	3,643	$	3,557
Research and development		2,224		2,015		4,097		3,883
Selling and marketing		2,352		2,567		4,101		4,768
General and administrative		5,663		5,739		9,496		11,680
Restructuring and divestiture		—		6,969		4,761		7,191

	$	12,372	$	19,013	$	26,098	$	31,079

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						Six Months Ended
	March 29, 2014			March 30, 2013			March 29, 2014			March 30, 2013
Risk-free interest rate		1.3	%		0.5	%		1.2	%		0.5	%
Expected volatility		41.4	%		43.7	%		41.4	%		43.7	%
Expected life (in years)		4.5			4.4			4.4			4.4
Dividend yield		—			—			—			—
Weighted average fair value of options granted	$	7.82		$	5.83		$	7.65		$	6.99