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v3.22.1

Contingencies (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2018 Party | Nov. 30, 2019 USD ($) | Mar. 31, 2016 Party mi | Apr. 02, 2022 USD ($) contaminate | Jan. 01, 2022 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |
Area of land | mi |  |  | 8.3 |  |
Estimate of possible loss |  |  |  | $ 1,380.0 |
Number of parties | Party | 100 |  | 100 |  |
Loss related to litigation settlement |  | $ 0.6 |  |  |
Number of contaminants | contaminate |  |  |  | 8 |
Insurance Environmental and Litigation Matters [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Reserves for insurance, environmental and litigation contingencies |  |  |  | $ 80.5 | $ 78.4
Insurance settlements receivable |  |  |  | 31.8 | $ 31.8
Pending Litigation [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  | $ 165.0 |
Number of parties | Party | 40 |  |  |  |
Plant, One [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss related to litigation settlement |  | 0.3 |  |  |
Plant, Two [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss related to litigation settlement |  | $ 0.3 |  |  |

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