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Revenue from Contracts with Customers (Tables) | 9 Months Ended
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Jun. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Schedule of Accounts, Notes, Loans and Financing Receivable | The table below represents the balances of our customer receivables and deferred revenues.
| June 30, |  | September 30,
| 2021 |  | 2020
| (in millions)
Billed receivables | $ | 199.9 |  |  | $ | 180.3 |
Unbilled receivables | 7.2 |  |  | 5.3 |
Total customer receivables | $ | 207.1 |  |  | $ | 185.6 |
Deferred revenues | $ | 7.4 |  |  | $ | 5.6 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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