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v3.23.3

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 20, 2023 | Nov. 09, 2023 | Oct. 24, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Subsequent Event [Line Items] |  |  |  |  |  |
Dividends declared, in dollars per share |  |  |  | $ 0.244 | $ 0.232 | $ 0.220
Stock Repurchased During Period, Shares |  |  |  | 714,830 | 2,654,254 | 651,271
Stock Repurchased During Period, Value |  |  |  | $ 10.0 | $ 35.0 | $ 10.0
Intangible Assets, Net (Including Goodwill) |  |  |  | 427.7 | 459.8 |
Inventories |  |  |  | 297.9 | 278.7 |
Restructuring Charges |  |  |  | 10.2 | 7.2 | $ 5.4
Mueller Co. [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Intangible Assets, Net (Including Goodwill) |  |  |  | 283.8 | 302.6 |
Inventories |  |  |  | 173.8 | 160.5 |
Mueller Technologies [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Intangible Assets, Net (Including Goodwill) |  |  |  | 143.9 | 157.2 |
Inventories |  |  |  | 124.1 | 118.2 |
Corporate [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Intangible Assets, Net (Including Goodwill) |  |  |  | 0.0 | 0.0 |
Inventories |  |  |  | $ 0.0 | $ 0.0 |
Subsequent Event [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Dividends Payable, Date Declared |  |  | Oct. 24, 2023 |  |  |
Dividends declared, in dollars per share |  |  | $ 0.064 |  |  |
Dividends Payable, Date to be Paid | Nov. 20, 2023 |  |  |  |  |
Dividends Payable, Date of Record |  | Nov. 09, 2023 |  |  |  |

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