Share-Based Compensation (Tables)

9 Months Ended

Sep. 27, 2014

The Company used the following assumptions for the Black-Scholes option-pricing model to determine the fair value of options granted during the nine months ended September 27, 2014 and September 28, 2013:


	Nine Months Ended
	September 27, 2014	September 28, 2013
Risk-free interest rate	0.95% - 1.32%	0.55% - 1.03%
Expected dividend yield	0%	0%
Expected option life	3 - 4 years	4 years
Expected volatility	42.5% - 45.4%	46.1% - 48.4%
Weighted-average expected volatility	42.6%	48.2%

Summary of Stock Option Activity

A summary of stock option activity and weighted average exercise prices for the nine months ended September 27, 2014 follows:


	Options			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value as of September 27, 2014
Outstanding at January 1, 2014		814,291		$	39.56
Granted		242,386			57.07
Forfeited		(28,209	)		46.05
Exercised		(72,092	)		34.95

Outstanding at September 27, 2014		956,376		$	44.01		4.5	$	10,167


Options exercisable at September 27, 2014		499,833		$	36.72		3.2	$	8,560

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 nine months ended September 27, 2014:


	Shares		Weighted-Average Grant Date Fair Value
Non-vested at January 1, 2014		31,448	$	41.39