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Share-Based Payments (Tables)
 12 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Share Option Activity
The following table summarizes Share Option activity during fiscal 2023:
SharesWeighted-Average Exercise PriceWeighted-Average Remaining Contractual Term
(in years)		Aggregate Intrinsic Value
Outstanding as of October 1, 2022
1.1 $54.05 
Granted0.1 $39.75 
Outstanding as of September 30, 2023
1.2 $46.88 6.2$— 
Vested and unvested expected to vest as of September 30, 2023
1.2 $46.88 6.2$— 
Exercisable as of September 30, 2023
0.8 $57.75 
Schedule of Share Option Valuation Assumptions The following table presents the Company’s weighted average fair value per option and the assumptions utilized in the Black-Scholes option pricing model:
2023
2022
Weighted-average fair value per share option$15.22 $14.25 
Expected volatility40.0 %39.0 %
Risk-free interest rate3.85 %1.33 %
Expected share option life (in years)6.06.1
Dividend yield1.51 %1.42 %
Schedule of Restricted Share Equivalent Award Activity
The following table summarizes RSE award activity during fiscal 2023:
SharesWeighted-Average
Grant Date Estimated Fair
Value
Non-vested at October 1, 2022
1.0 $38.09 
Granted0.5 40.17 
Vested(0.5)39.00 
Canceled(0.1)36.23 
Non-vested at September 30, 2023
0.9 39.74 
Share-based Payment Arrangement, Performance Shares, Activity
The following table summarizes PRSE award activity during fiscal 2023:
SharesWeighted-Average
Grant Date Estimated Fair
Value
Non-vested at October 1, 2022
0.5 $43.04 
Granted0.2 58.55 
Vested(0.1)62.09 
Canceled(0.2)42.63 
Non-vested at September 30, 2023
0.4 60.56 
Schedule Of Share Based Payment Award Non Options Valuation Assumptions The assumptions for PRSE awards during the years ended September 30, 2023 and 2022 are summarized in the following table.
2023
2022
Expected term (in years)3.03.0
Expected stock price volatility48.20 %48.73 %
Risk-free interest rate4.14 %0.85 %
Fair value (per award granted)58.5565.90