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Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2025	Sep. 30, 2024
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 12.0	$ 9.6
Common shares, stated value per share (USD per share)	$ 0.01	$ 0.01
Common shares outstanding (in shares)	57.8	57.1
Treasury shares, at cost (in shares)	10.4	11.0

X

- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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