XML 14 R9.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Share
 3 Months Ended
Mar. 31, 2013
Notes to Financial Statements [Abstract]  
Earnings Per Share
3.
Earnings Per Share

Basic earnings per share were calculated using net earnings and the weighted average number of shares of common stock outstanding during the respective period. Diluted earnings per share were calculated using net earnings and the weighted average number of shares of common stock and potential common stock outstanding during the respective period. Potentially dilutive common stock consisted of stock options and the premium over the conversion price on Roper's senior subordinated convertible notes based upon the trading price of Roper's common stock. The effects of potential common stock were determined using the treasury stock method.  Weighted average shares outstanding are as shown below (in thousands):
 
 
 
Three months ended
March 31,
 
 
 
2013
 
2012
 
Basic shares outstanding    
 
98,876
 
97,039
 
Effect of potential common stock    
 
 
 
 
 
Common stock awards
 
892
 
1,140
 
Senior subordinated convertible notes 
 
218
 
1,128
 
Diluted shares outstanding    
 
99,986
 
99,307
 

For the three months ended March 31, 2013 there were 568,850 outstanding stock options that were not included in the determination of diluted earnings per share because doing so would have been antidilutive, as compared to 454,165 outstanding stock options that would have been antidilutive for the three months ended March 31, 2012.