Basis of Presentation and Significant Accounting Policies (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
|
| Trade Accounts Receivable and Accounts Receivable, Other | |||
| Allowance for Doubtful Accounts | $ 800,000 | $ 1,100,000 | |
| Property Plant and Equipment | |||
| Imapirement loss | $ 0 | $ 0 | $ 3,300,000 |
| Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] | Restructuring Charges | Restructuring Charges | Restructuring Charges |
| Fair value net of estimated cost to dispose | $ 43,600,000 | ||
| Selling, general and administrative expenses or cost of goods sold | |||
| Property Plant and Equipment | |||
| Depreciation expense | $ 106,600,000 | $ 99,000,000.0 | $ 95,900,000 |