Earnings Per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during each period. Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. For the three months ended March 31, 2013, 780,421 shares of common stock equivalents related to equity-based awards have not been included in the diluted per share calculation as the shares would be antidilutive. For the three months ended March 31, 2012, 1,167 shares of common stock equivalents related to equity-based awards have not been included in the diluted per share calculation as the shares would be antidilutive. The 3.25% Convertible Senior Notes were not included in the computation of diluted earnings per share for the three months endedMarch 31, 2013 and 2012 because there is no excess value upon conversion over the principal amount of the Notes.

The effect of potentially dilutive stock outstanding as of March 31, 2013 and 2012 are as follows (in thousands, except per share data):

	Three months ended March 31, 2013
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Net income available to common shareholders	$	12,270	89,948	$	0.14
Effect of Dilutive Securities
Equity awards	—		88
Diluted EPS
Net income available to common shareholders	$	12,270	90,036	$	0.14
	Three months ended March 31, 2012
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Net income available to common shareholders	$	3,975	89,591	$	0.04
Effect of Dilutive Securities
Equity awards	—		230
Diluted EPS
Net income available to common shareholders	$	3,975	89,821	$	0.04