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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable | The table below presents the balances of our customer receivables and deferred revenue:
| September 30,
| 2025 |  | 2024
| (in millions)
Billed receivables | $ | 210.8 |  |  | $ | 212.7 |
Unbilled receivables | 4.7 |  |  | 4.5 |
Gross customer receivables | 215.5 |  |  | 217.2 |
Allowance for credit losses | (3.6) |  |  | (8.3) |
Receivables, net | $ | 211.9 |  |  | $ | 208.9 |
Deferred revenue | $ | 12.1 |  |  | $ | 12.8 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable | Activity in deferred revenue is presented below:
| September 30,
| 2025 |  | 2024
| (in millions)
Balance at beginning of year | $ | 12.8 |  |  | $ | 9.2 |
Revenue deferred | 9.5 |  |  | 12.2 |
Previously deferred revenue recognized | (10.2) |  |  | (8.6) |
Balance at end of year | $ | 12.1 |  |  | $ | 12.8 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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