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Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]      
Contract receivables $ 229,267 $ 179,805  
Contract liabilities 147,383 175,511  
Liability, revenue recognized 1,500 $ 4,100 $ 5,600
Specialty Polymers | Polymer      
Disaggregation of Revenue [Line Items]      
Liability, revenue recognized 9,300    
Foreign currency translation gain (loss) 1,700    
Cariflex | Specialty Polymers | Polymer      
Disaggregation of Revenue [Line Items]      
Additions to contract liabilities 180,600    
Cariflex | Disposal Group      
Disaggregation of Revenue [Line Items]      
Additions to contract liabilities $ 136,400