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Commitments and Contingencies - Narrative (Details)
kg in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
location
kg
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Loss Contingencies [Line Items]      
Outstanding letters of credit $ 80.2 $ 88.8  
Minimum number of kilograms required to be purchased (in kilograms) | kg 13.7    
Purchase commitment term 10 years    
Minimum purchase commitment $ 23.3    
Notice period 2 years    
Number of locations | location 11    
Accrued liabilities for remediation $ 6.8 9.2  
Ecolab      
Loss Contingencies [Line Items]      
Payments made under supply agreements $ 25.0    
Interest rate under supply agreement 4.00%    
Discounts to be paid under supply agreement $ 30.0    
Fair value of expected future cash flows $ 14.1 $ 14.9  
Oklahoma Department of Environmental Quality      
Loss Contingencies [Line Items]      
Accrued liabilities for remediation     $ 2.0