XML 30 R14.htm IDEA: XBRL DOCUMENT v3.24.0.1
Earnings Per Share
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share
4. Earnings Per Share:

Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the sum of the weighted-average number of shares and the number of equivalent shares assumed outstanding, if dilutive, under our stock-based compensation plans.

The computations of basic and diluted earnings per share were as follows (in millions, except per share data):
 
 For the Years Ended December 31,
 202320222021
Net income$590.1 $497.1 $464.0 
Weighted-average shares outstanding – basic35.5 35.7 37.2 
Add: Potential effect of diluted securities attributable to stock-based payments0.2 0.1 0.3 
Weighted-average shares outstanding – diluted$35.7 $35.8 $37.5 
Earnings per share - Basic:
Net income$16.61 $13.92 $12.47 
Earnings per share - Diluted:
Net income$16.54 $13.88 $12.39