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Restructuring and Other Charges (Credits), Net - Schedule of Restructuring Accrual Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | $ 935 | $ 5,486 | $ 9,987
Charges (credits) to operations, net | (424) | 32,410 | 2,136
Cash disbursements | (425) | (40,800) | (6,681)
Foreign exchange impact | 21 | (583) | 44
Restructuring reserve, ending balance | 107 | 935 | 5,486
Employee Severance and Related Benefits |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 346 | 1,981 | 3,992
Charges (credits) to operations, net | (143) | 32,971 | 1,887
Cash disbursements | (121) | (34,023) | (3,925)
Foreign exchange impact | 21 | (583) | 27
Restructuring reserve, ending balance | 103 | 346 | 1,981
Facility Closures |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 589 | 3,505 | 5,995
Charges (credits) to operations, net | (281) | (561) | 249
Cash disbursements | (304) | (2,355) | (2,756)
Foreign exchange impact | 0 | 0 | 17
Restructuring reserve, ending balance | $ 4 | 589 | $ 3,505
PTC Restructuring Plan 2022 |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Cash disbursements |  | $ (36,378) |

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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