Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2012

Benefit Plans [Abstract]

Summary of stock option and restricted stock unit activity

The following table summarizes the Company’s stock option and restricted stock unit activity during the three months ended March 30, 2012 (in thousands, except per share amounts):

				Stock Options Outstanding					Restricted Stock Units Outstanding
	Shares Available for Grant			Number of Shares			Weighted Average Exercise Price		Number of Units			Weighted Average Grant Date Fair Value
Balance at December 31, 2011		7,835			9,303		$	7.12		3,713		$	7.52
Granted		(3,835	)		899		$	6.14		1,957		$	6.10
Options exercised		—			(129	)	$	2.93		—		$	—
Shares released		—			—		$	—		(649	)	$	8.29
Forfeited or cancelled		815			(722	)	$	9.28		(273	)	$	6.73
Balance at March 30, 2012		4,815			9,351		$	6.92		4,748		$	6.77

Summary of stock options and restricted stock units, vested and expected to vest, exercisable

The following table summarizes information about stock options outstanding as of March 30, 2012 (in thousands, except per share amounts and term):

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Vested and expected to vest		9,185	$	6.92		3.8	$	3,373
Exercisable		6,817	$	7.13		2.9	$	2,272

The following table summarizes information about restricted stock units outstanding as of March 30, 2012 (in thousands, except term):

	Number of Shares Underlying Restricted Stock Units		Weighted Average Remaining Vesting Period (Years)		Aggregate Fair Value
Vested and expected to vest		4,376		1.6	$	23,939