Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

The following table summarizes information related to restricted stock held by the Company’s employees and directors at December 31, 2012:


	Shares			Weighted Average Grant Date Fair Value per Share
Non-vested shares outstanding at December 31, 2010		240,345		$	16.16
Granted		248,228			30.99
Vested		(92,115	)		16.24
Forfeited		(5,180	)		27.40

Non-vested shares outstanding at December 31, 2011		391,278		$	25.40
Granted		753,285			29.66
Vested		(396,073	)		26.04
Forfeited		(48,066	)		31.15

Non-vested shares outstanding at December 31, 2012		700,424		$	29.22

The following table summarizes information related to PSUs held by the Company’s officers at December 31, 2012:


	Initial Unit Awards		Weighted Average Grant Date Fair Value per Unit
Non-vested PSUs at December 31, 2011		—	$	—
Granted		155,220		26.22
Vested		—		—
Forfeited		—		—

Non-vested PSUs at December 31, 2012		155,220	$	26.22

The following assumptions were used for the Monte Carlo model to value the stock-based compensation expense of the PSUs granted during 2012: