v3.26.1
Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2026
Earnings Per Share [Abstract]  
Schedule of Reconciliation of Basic and Diluted Earnings Per Share Computations
The following tables provide a reconciliation of basic and diluted earnings per share computations for the three and six months ended June 30, 2026 and 2025:

Three Months Ended
June 30,		Six Months Ended
June 30,
(Millions of dollars, except share and per share amounts)2026202520262025
Earnings per common share:
Net income per share - basic
Net income attributable to common stockholders$209.1 $145.6 $345.4 $198.8 
Weighted average common shares outstanding (in thousands)18,438 19,546 18,478 19,738 
Earnings per common share$11.34 $7.44 $18.69 $10.07 
Three Months Ended
June 30,		Six Months Ended
June 30,
(Millions of dollars, except share and per share amounts)2026202520262025
Earnings per common share - assuming dilution:
Net income per share - diluted
Net income attributable to common stockholders$209.1 $145.6 $345.4 $198.8 
Weighted average common shares outstanding (in thousands)18,438 19,546 18,478 19,738 
Common equivalent shares:
Dilutive share-based awards114 219 150 247 
Weighted average common shares outstanding - assuming dilution
(in thousands)		18,552 19,765 18,628 19,985 
Earnings per common share assuming dilution$11.27 $7.36 $18.54 $9.95 
Schedule of Potentially Dilutive Shares Excluded from Earnings Per Share
We have excluded from the earnings-per-share calculation certain stock options and shares that are considered to be anti-dilutive under the treasury stock method and are reported in the table below.

Three Months Ended
June 30,		Six Months Ended
June 30,
Potentially dilutive shares excluded from the calculation as their inclusion would be anti-dilutive2026202520262025
Stock Options12,118 61,110 42,084 54,404 
RSUs— — 6,032 — 
PSUs126 9,220 127 7,081 
Total anti-dilutive shares12,244 70,330 48,243 61,485