v3.26.1
Earnings per share
 9 Months Ended
Jun. 30, 2026
Earnings Per Share [Abstract]  
Earnings per share Earnings per share
Basic earnings per share is based on the average number of common shares outstanding during the period. Diluted earnings per share is based on the average number of shares used for the basic earnings per share calculation, adjusted for the dilutive effect of restricted stock unit (RSU) awards, performance share awards and deferred compensation equity plans.

The following table sets forth the computation of basic and diluted earnings per share for the quarters and nine months ended June 30, 2026 and 2025:
(in millions, except per share data)For the Quarters Ended June 30,For the Nine Months Ended June 30,
Basic net earnings per share2026202520262025
Net earnings$39.9 $153.5 $46.6 $204.1 
Weighted average common shares outstanding - Basic68.5 71.2 68.5 71.8 
Basic net earnings per common share$0.58 $2.16 $0.68 $2.84 
Diluted net earnings per share
Weighted average common shares outstanding - Basic68.5 71.2 68.5 71.8 
Dilutive effect of RSU awards0.4 0.4 0.3 0.4 
Dilutive effect of performance shares0.3 0.5 0.4 0.7 
Weighted average common shares outstanding - Diluted69.2 72.1 69.2 72.9 
Diluted net earnings per common share$0.58 $2.13 $0.67 $2.80 

For both the quarter and nine months ended June 30, 2026 there were 1.1 million antidilutive RSU shares not included in the diluted net earnings per share calculation. For the quarter and nine months ended June 30, 2025 there were 0.7 million and 0.3 million antidilutive RSU shares, respectively, that were excluded from the diluted net earnings per share calculation.
Performance based RSU shares of 1.1 million and 1.2 million were excluded from the quarter and nine months ended June 30, 2026, respectively, as the performance targets for those awards had not been achieved at the end of the applicable periods. Performance based RSU shares of 1.1 million and 0.9 million were excluded from the quarter and nine months ended June 30, 2025, respectively, as the performance targets for those awards had not been achieved at the end of the applicable periods.