v3.26.1
Earnings per Share (Tables)
 6 Months Ended
Mar. 31, 2026
Earnings Per Share [Abstract]  
Schedule of Weighted-Average Shares Outstanding
The following is the reconciliation between the number of weighted-average shares used in the basic and diluted net (loss) earnings per share calculation:    
Three Months Ended
March 31,		Six Months Ended
March 31,
 2026202520262025
Basic weighted-average shares outstanding46.5 48.0 46.5 48.3 
Effect of dilutive securities:
Options, RSE and PRSE awards0.3 0.2 — 0.1 
Total dilutive securities0.3 0.2 — 0.1 
Diluted weighted-average shares outstanding46.8 48.2 46.5 48.4 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The following weighted-average common shares were excluded from the calculation of diluted net (loss) earnings per share because the effect of including these awards was antidilutive.
Three Months Ended
March 31,		Six Months Ended
March 31,
2026202520262025
Options, RSE and PRSE awards2.1 1.8 1.9 1.6