Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisitions - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,895.0		$ 1,650.3
Lifecycle Services
Business Acquisition [Line Items]
Goodwill	635.4		0.0
Software & Control
Business Acquisition [Line Items]
Goodwill	716.5		$ 0.0
Oylo And Fiix Inc.
Business Acquisition [Line Items]
Goodwill		$ 219.8
Oylo And Fiix Inc. \| Customer Relationships, Technology, and Trade Names
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 73.4
Acquired finite-lived intangible assets, weighted average useful life	11 years
Oylo And Fiix Inc. \| Lifecycle Services
Business Acquisition [Line Items]
Goodwill	$ 12.8
Oylo And Fiix Inc. \| Software & Control
Business Acquisition [Line Items]
Goodwill	$ 207.0