Supplemental Financial Information - Summary of Accounts Receivable (Details) - USD ($) $ in Millions	Jun. 30, 2025	Sep. 30, 2024
Current
Trade	$ 79.5	$ 73.2
Notes receivable from franchisees	11.0	5.4
Other	2.1	9.1
Receivables, gross	92.6	87.7
Allowance for credit losses	(2.8)	(1.3)
Receivables, net	89.8	86.4
Non-current
Notes receivable	2.6	2.5
Other	4.6	4.4
Noncurrent notes receivable, gross	7.2	6.9
Allowance for losses	(2.7)	(2.6)
Noncurrent notes receivable, net	$ 4.5	$ 4.3

Amount of allowance for credit loss of accounts and financing receivables. Includes, but is not limited to, notes and loan receivable.

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The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

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Amount, after allowance for credit loss, of accounts and financing receivables, classified as noncurrent. Includes, but is not limited to, notes and loan receivable.

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Amortized cost, before allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Current Receivables, Gross

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Notes Receivable non current

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Other receivables, Noncurrent

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