Stock-Based Compensation (Tables)

9 Months Ended

Sep. 23, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Option Activity Under The Principal Option Plans

Option activity under the principal option plans as of September 23, 2012 and changes during the nine months ended September 23, 2012 were as follows:

	Number of Shares		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 25, 2011	2,600,805		$	19.54	4.39	$	512
Granted	801,880		9.70
Exercised	(38,084	)	8.83
Forfeited or expired	(254,527	)	16.60
Outstanding at September 23, 2012	3,110,074		$	17.37	4.79	$	342
Vested and expected to vest at September 23, 2012	3,110,074		$	17.37	4.79	$	342
Exercisable at September 23, 2012	2,361,581		$	19.58	3.29	$	49

Assumptions And Weighted-Average Fair Values Of Share-Based Payment Units Under Black-Scholes Option Pricing Model

The assumptions and weighted-average fair values were as follows:

Nine months ended	September 23, 2012		September 25, 2011
Weighted-average fair value of grants	4.38		9.88
Valuation assumptions:
Expected dividend yield	0.00	%	0.00	%
Expected volatility	52.08	%	49.85	%
Expected life (in years)	5.06		4.96
Risk-free interest rate	0.750	%	2.178	%

Nonvested Service Based Restricted Stock Units

Nonvested service based restricted stock units as of September 23, 2012 and changes during the nine months ended September 23, 2012 were as follows:

	Number of Shares		Weighted- Average Vest Date (in years)	Weighted- Average Grant Date Fair Value
Nonvested at December 25, 2011	617,672		0.79	$	21.29
Granted	210,795			$	10.72
Vested	(186,254	)		$	11.38
Forfeited	(68,046	)		$	17.34
Nonvested at September 23, 2012	574,167		1.04	$	21.09
Vested and expected to vest at September 23, 2012	574,167		1.04
Vested at September 23, 2012	61,250		—