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Revenue from Contracts with Customers (Tables)

3 Months Ended

Dec. 31, 2018

Accounts, Notes, Loans and Financing Receivable [Line Items]

Schedule of Financing Receivables, Minimum Payments [Table Text Block]

The table below represents the balances of our customer receivables and deferred revenues.

	December 31,				September 30,
	2018				2018
	(in millions)
Billed receivables	$	112.4			$	165.3
Unbilled receivables	5.0				2.4
Total customer receivables	$	117.4			$	167.7
Deferred revenue	$	3.9			$	3.3

X

- 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

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Tabular disclosure of the annual minimum payments due from financing receivables, such as, but not limited to accounts, notes, loans, and other financing receivables.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfFinancingReceivablesMinimumPaymentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration