Earnings per Share

6 Months Ended

Mar. 31, 2012

Earnings per Share

6. Earnings per Share

Below is a reconciliation of weighted average common shares outstanding for purposes of calculating basic and diluted earnings per share (in thousands):

	Three months ended March  31,				Six months ended March 31,
	2012		2011		2012		2011
Weighted average common shares outstanding used in computing basic earnings per share		65,038		64,516		64,925		64,388
Dilutive common stock options and restricted stock awards		790		545		627		413
Weighted average common shares outstanding for purposes of computing diluted earnings per share		65,828		65,061		65,552		64,801

Approximately 224,000 and 372,000 options to purchase common stock and 0 and 388,000 shares of restricted stock were excluded from the computation of diluted earnings per share attributable to common stockholders for the three months ended March 31, 2012 and 2011, respectively, as their effect would be anti-dilutive. In addition, approximately 278,000 and 419,000 options to purchase common stock and 63,000 and 192,000 shares of restricted stock were excluded from the computation of diluted earnings per share attributable to common stockholders for the six months ended March 31, 2012 and 2011, respectively, as their effect would be anti-dilutive.