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v3.19.3.a.u2

Organization (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Oct. 03, 2019 | Jul. 31, 2014 | Dec. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Mar. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |
Beginning balance |  |  | $ 1.7 | $ 0.9 |  |
Restructuring |  |  | 2.4 | 3.2 |  |
Payments |  |  | 0.5 | 1.1 |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 51.00% | 49.00% |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost other than Service Cost |  |  | $ (0.7) | $ (0.1) |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% | 21.00% |  | 35.00%
Payments to Acquire Interest in Joint Venture |  |  | $ 2.2 | $ 0.0 | $ 1.7 |
Mueller Co. [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Restructuring |  |  | $ 0.0 | $ 0.0 |  |

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