XML 84 R73.htm IDEA: XBRL DOCUMENT v3.25.3
Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Numerator        
Net Income $ 39.7 $ 645.7 $ 564.4 $ 1,430.4
Denominator        
Weighted Average Common Shares - Basic 170,248,100 186,400,700 174,152,500 189,665,100
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards 340,700 481,700 417,500 544,600
Weighted Average Common Shares - Assuming Dilution 170,588,800 186,882,400 174,570,000 190,209,700
Net Income Per Common Share        
Basic $ 0.23 $ 3.46 $ 3.24 $ 7.54
Assuming Dilution $ 0.23 $ 3.46 $ 3.23 $ 7.52