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Discontinued Operations, Goodwill, and Intangible Assets - Significant components included in Consolidated Statement of Cash Flows (Details) - Held for sale - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Summary of financial information of the Disposal Group
Property and equipment		$ 4.6
Intangible assets and capitalized debt issuance costs		26.0
Payments for capital expenditures	$ (7.3)	$ (19.6)

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- Definition

Amount of deprecation and amortization expense attributable to intangible assets and capitalized debt issuance costs of discontinued operations.

+ References

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- Definition

Amount of deprecation and amortization expense attributable to property, plant and equipment of discontinued operations.

+ References

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- Definition

Amount of capital expenditure attributable to discontinued operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

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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.

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