Number of unrelated companies allocated between maintenance services and development services.

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- Definition

Number of unrelated maintenance services companies acquired.

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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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.

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No definition available.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Intangible Assets, Goodwill and Acquisitions - Additional Information (Details) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($) Company	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) Company	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 12.5		$ 13.6	$ 26.4	$ 27.1
Goodwill impairment		$ 15.5				$ 15.5
Acquisition of operations, Percentage	100.00%			100.00%
Number of unrelated maintenance services companies acquired \| Company	4			4
Consideration paid, net of cash acquired				$ 75.7	$ 87.1
Number of unrelated companies allocated between maintenance services and development services \| Company	2			2
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Identifiable assets acquired related to intangible assets	$ 18.0			$ 18.0