Earnings Per Share

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The following table presents calculations of net income per share of common stock for the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Net income attributable to Chart Industries, Inc.	$	18,516	$	17,540	$	50,535	$	35,661
Net income attributable to Chart Industries, Inc. per common share – basic	$	0.62	$	0.60	$	1.70	$	1.23
Net income attributable to Chart Industries, Inc. per common share – diluted	$	0.61	$	0.59	$	1.68	$	1.19
Weighted average number of common shares outstanding – basic	29,839		29,288		29,743		29,088
Dilutive effect of share-based awards	391		678		412		783
Dilutive effect of convertible debt	13		—		13		—
Weighted average number of common shares outstanding – diluted	30,243		29,966		30,168		29,871

Certain common shares that may be issuable upon the vesting of share-based awards and potential settlements under convertible note hedge and capped call transactions used to offset the dilutive effect of the Convertible Notes were not included in the computation of diluted earnings per share as they were anti-dilutive. There were 116 and 110 anti-dilutive shares for the three and nine months ended September 30, 2012, respectively, and 148 and 97 anti-dilutive shares for the three and nine months ended September 30, 2011, respectively.