Stock-based Compensation (Tables)

12 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule Of Restricted Stock and Restricted Stock Unit Activity

Fiscal 2025 activity of restricted stock units subject to performance and/or market conditions is presented below:

	Units			Weighted Average Grant Date Fair Value Per Unit
Non-vested at September 30, 2024		289,205		$	73.36
Granted		103,780		$	76.52
Adjusted for performance		21,469		$	65.02
Vested		(100,784	)	$	65.02
Forfeited		(69,166	)	$	74.67
Non-vested at September 30, 2025		244,504		$	75.62

Time-vested restricted stock and stock unit activity for fiscal 2025 is presented below:

	Shares/ Units			Weighted Average Grant Date Fair Value Per Share
Non-vested at September 30, 2024		85,559		$	64.13
Granted		57,030		$	72.00
Vested		(42,677	)	$	66.36
Forfeited		(23,348	)	$	67.61
Non-vested at September 30, 2025		76,564		$	67.20

Schedule Of Stock Option Valuation Assumptions

The significant assumptions used in the Monte Carlo simulations are as follows:

	2025	2024	2023
Risk-free interest rate	4.33%	4.66%	4.26%
Expected dividend yield of stock	—	—	—
Expected volatility of stock	22.2%	23.3%	33.8%
Performance period (in years)	3.0	3.0	3.0

Schedule Of Share-based Compensation Arrangement, Expensed and Capitalized

The amounts of compensation cost recognized for share-based compensation arrangements are presented below:

	2025			2024			2023
Total compensation cost	$	7.8		$	6.6		$	11.2
Compensation cost capitalized		(1.1	)		(0.8	)		(1.4	)
Compensation cost recognized in net income		6.7			5.8			9.8
Income tax benefit recognized in net income		(1.5	)		(1.3	)		(2.2	)
Compensation cost recognized in net income, net of income tax	$	5.2		$	4.5		$	7.6