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Stock-based Compensation Plans (Tables)

9 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Share-based Payment Arrangement, Activity [Table Text Block]

Grants issued during the nine months ended June 30, 2025 are as follows:

			Number granted						Weighted average grant date fair value per instrument						Total grant date fair value (in millions)
Quarter ended December 31, 2024
MRSUs			64,044						$	38.25					$	2.4
PRSUs			64,044						25.58						1.6
Restricted stock units			87,344						25.58						2.2
Phantom Plan instruments			134,382						25.58						3.4
Non-qualified stock options			207,417						7.90						1.6
Employee stock purchase plan instruments			24,621						$	3.86					0.1
Total - Quarter ended December 31, 2024															$	11.3
Quarter ended March 31, 2025
MRSUs			7,692						$	41.24					$	0.3
PRSUs			7,692						25.19						0.2
Restricted stock units			84,355						26.60						2.2
Non-qualified stock options			21,198						9.14						0.2
Employee stock purchase plan instruments			24,802						$	4.53					0.1
Total - Quarter ended March 31, 2025															$	3.0
Quarter ended June 30, 2025
Employee stock purchase plan instruments			21,752						$	5.45					$	0.1
Total - Quarter ended June 30, 2025															0.1
Total - Year to date ended June 30, 2025															$	14.4

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The assumptions used to determine the grant date fair value are indicated below for awards granted to date during the current fiscal year:

						December 3, 2024						March 3, 2025
Variables used in determining grant date fair value:
Dividend yield						1.10%						1.10%
Risk-free rate						4.10%						3.90%
Expected term (in years)						2.80						2.60

The assumptions used to determine the grant date fair value are indicated below for awards granted to date during the current fiscal year:

						December 3, 2024						March 3, 2025
Variables used in determining grant date fair value:
Dividend yield						1.64%						1.41%
Risk-free rate						4.14%						4.02%
Expected term (in years)						6.00						6.00

X

- Definition

Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

+ References

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-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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