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Acquisitions Details (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 01, 2021 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 22, 2021
Business Acquisition [Line Items] |  |  |  |  |
Change in fair value of contingent consideration |  | $ 0 | $ 0 | $ 6,200 |
Operating lease right-of-use assets |  | 10,207 | 12,876 |  |
Operating lease liabilities |  | 11,228 | 13,989 |  |
Goodwill |  | 342,774 | 341,593 | $ 340,477 |
Maximum borrowing capacity |  |  |  |  | $ 215,000
Total reported lease liability |  | 14,201 | 17,341 |  |
Ventus |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash paid at closing | $ 350,000 |  |  |  |
Operating lease right-of-use assets | $ 900 |  |  |  |
Weighted average useful life identifiable intangibles | 19 years 2 months 12 days |  |  |  |
Acquisition costs | $ 4,400 |  | 3,100 |  |
Goodwill | 118,635 |  |  |  |
Maximum borrowing capacity | 350,000 |  |  |  |
Total reported lease liability | $ 900 |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  | 54,300 |  |
Net sales |  | 393,290 | 360,820 |  |
Net income |  | $ 14,274 | $ (2,701) |  |
Maximum |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life identifiable intangibles |  | 20 years 6 months |  |  |
Customer Relationships | Ventus |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 20 years 6 months |  |  |  |
Trademarks | Ventus |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 13 years |  |  |  |
Technology-Based Intangible Assets | Ventus |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 11 years |  |  |  |

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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479907/805-20-50-5 + Details
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481372/852-10-55-10 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482548/350-20-55-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482598/350-20-45-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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