Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

The Company used the following assumptions for the Black-Scholes option-pricing model to determine the fair value of options granted during the six months ended June 30, 2012 and July 2, 2011:


	For the Six Months Ended
	June 30, 2012	July 2, 2011
Risk-free interest rate	0.61% - 0.66%	1.12% - 1.83%
Expected dividend yield	0%	0%
Expected option life	4 years	4 years
Expected volatility	50.4% - 50.7%	47.9% - 48.7%
Weighted-average expected volatility	50.7%	48.7%

Summary of Stock Option Activity

A summary of stock option activity and weighted average exercise prices for the six months ended June 30, 2012 follows:


	Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value as of June 30, 2012
Outstanding at January 1, 2012		865,445		$	26.72
Granted		240,866			57.00
Forfeited		(17,557	)		30.01
Exercised		(231,109	)		24.23

Outstanding at June 30, 2012		857,645		$	35.84		5.0	$	8,944

Options exercisable at June 30, 2012		389,619		$	24.54		3.7	$	6,834

Summary of Restricted Stock Activity

The following table summarizes the restricted stock and restricted stock unit activity and weighted average grant-date fair values for the six months ended June 30, 2012:


	Shares			Weighted- Average Grant Date Fair Value
Non-vested at January 1, 2012		43,527		$	32.31
Granted		12,719			49.98
Forfeited		(1,619	)		27.39
Vested		(17,160	)		35.45

Non-vested at June 30, 2012		37,467		$	40.85