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Discontinued Operations - Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Disposal Group, Including Discontinued Operation, Assets [Abstract]    
Current assets $ 9.3 $ 8.5
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]    
Current liabilities 5.0 1.4
Discontinued operations, held-for-sale | Superform U.S Business    
Disposal Group, Including Discontinued Operation, Assets [Abstract]    
Accounts and other receivables 2.7 2.1
Inventories 2.7 2.7
Current assets 5.4 4.8
Right-of-use assets 2.7 0.0
Total assets 8.1 4.8
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]    
Accounts payable 0.8 0.5
Accrued liabilities 0.2 0.1
Other current liabilities 4.0 0.8
Current liabilities 5.0 1.4
Total liabilities $ 5.0 $ 1.4