Equity Awards (Tables)

6 Months Ended

Jun. 30, 2013

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

Schedule of Share-based Compensation, Stock Options, Activity

Information related to stock options at June 30, 2013 is as follows:

	Number of Options		Weighted Average Option Price		Average  Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2013	675,665		$	15.52
Exercised	(248,560	)	20.84
Cancelled	—		—
Expired	—		—
Outstanding at June 30, 2013	427,105		$	12.42	4.1	$	10,618,135

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

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During 2012, the Company awarded restricted shares of common stock to certain Company key employees which are performance-based grants. Of this award, 60% are earned based on 2012 EPS growth, and the remaining 40% are earned based on the EPS CAGR for 2012 and 2013. For the 60% of shares subject to the 2012 earnings per share growth metric only, the performance conditions were satisfied, resulting in an attainment level of 175% of target. This resulted in an additional 72,576 share grants during the first quarter of 2013.

Information related to restricted shares at June 30, 2013 is as follows:

	Number of Unvested Restricted Shares		Weighted Average Grant Date Fair Value		Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2013	636,037		$	22.02
Granted	402,343		28.20
Vested	(342,026	)	22.16
Cancelled	(1,892	)	24.33
Outstanding at June 30, 2013	694,462		$	25.53	1.9	$	25,889,543