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The number of positions eliminated during the period as a result of restructuring activities.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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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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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Restructuring Charges - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
Restructuring Charges - Narrative (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Rate	Jun. 30, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 56,648	$ 0	$ 65,388	$ 7,909
Q3 2023 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			56,700
Severance Costs			53,193
Other Restructuring Costs			$ 3,500
Restructuring and Related Cost, Number of Positions Eliminated			620
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent \| Rate			9.00%
Q1 2023 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 8,700
Severance Costs			$ 8,740
Q1 2022 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges				7,900
Severance Costs				$ 7,909