Reporting unit carrying value of goodwill.

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

Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

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.

+ References

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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 fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

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- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

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Goodwill and Intangible Assets - Goodwill - Additional Information (Details) - USD ($)	9 Months Ended	12 Months Ended
	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Goodwill [Line Items]
Estimate fair value	$ 995,000,000	$ 713,000,000.0
Reporting unit, carrying value	950,000,000
Reporting unit, amount of fair value in excess of carrying amount	$ 45,000,000
Reporting Unit, Percentage of fair value in excess of carrying amount	5.00%
Goodwill impairment charge	$ 0	213,700,000	$ 0	$ 0
Customer Relationships \| Operating Expenses
Goodwill [Line Items]
Amortization expense		11,500,000	12,700,000	12,600,000
Technology and Patents \| Cost of Revenues
Goodwill [Line Items]
Amortization expense		$ 3,000,000.0	$ 7,500,000	$ 8,300,000