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v3.23.1

Segment Information (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other charges | $ 0.7 | $ 0.6 | $ (3.0) | $ 3.0
Operating income | 32.9 | 34.2 | 66.9 | 63.1
Depreciation, Depletion and Amortization | 15.5 | 14.8 | 30.3 | 30.0
Payments to Acquire Productive Assets | 10.6 | 15.0 | 20.5 | 26.0
Net sales | 332.9 | 310.5 | 647.7 | 582.8
Mueller Co. [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other charges | 0.0 | 0.0 | 0.0 | 0.0
Operating income | 15.2 | 35.4 | 39.4 | 66.7
Depreciation, Depletion and Amortization | 7.8 | 7.5 | 15.5 | 14.9
Payments to Acquire Productive Assets | 7.8 | 12.1 | 15.6 | 21.5
Net sales | 157.2 | 183.9 | 322.8 | 338.8
Mueller Co. [Member] | Central Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 44.0 | 50.7 | 88.0 | 91.2
Mueller Co. [Member] | Northeast Region [Member] [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 30.4 | 31.1 | 61.7 | 61.1
Mueller Co. [Member] | Southeast Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 28.6 | 40.7 | 62.0 | 78.0
Mueller Co. [Member] | Western Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 36.4 | 45.8 | 85.6 | 83.9
Mueller Co. [Member] | UNITED STATES |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 139.4 | 168.3 | 297.3 | 314.2
Mueller Co. [Member] | CANADA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 15.0 | 14.0 | 19.4 | 21.9
Mueller Co. [Member] | Other International Locations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 2.8 | 1.6 | 6.1 | 2.7
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other charges | 0.5 | 0.5 | (3.2) | 2.9
Operating income | (14.0) | (12.9) | (23.8) | (26.8)
Depreciation, Depletion and Amortization | 0.0 | 0.0 | 0.1 | 0.1
Payments to Acquire Productive Assets | 0.0 | 0.0 | 0.0 | 0.0
Mueller Technologies [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other charges | 0.2 | 0.1 | 0.2 | (0.1)
Operating income | 31.7 | 11.7 | 51.3 | 23.2
Depreciation, Depletion and Amortization | 7.7 | 7.3 | 14.7 | 15.0
Payments to Acquire Productive Assets | 2.8 | 2.9 | 4.9 | 4.5
Net sales | 175.7 | 126.6 | 324.9 | 244.0
Mueller Technologies [Member] | Central Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 44.3 | 34.6 | 85.8 | 63.4
Mueller Technologies [Member] | Northeast Region [Member] [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 40.6 | 28.4 | 71.8 | 52.7
Mueller Technologies [Member] | Southeast Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 39.4 | 26.3 | 72.7 | 51.8
Mueller Technologies [Member] | Western Region [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 32.7 | 22.3 | 61.8 | 47.0
Mueller Technologies [Member] | UNITED STATES |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 157.0 | 111.6 | 292.1 | 214.9
Mueller Technologies [Member] | CANADA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 12.6 | 8.7 | 19.9 | 16.3
Mueller Technologies [Member] | Other International Locations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 6.1 | $ 6.3 | $ 12.9 | $ 12.8

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