Annual report pursuant to Section 13 and 15(d)

Revenue from Contracts with Customers Disaggregated Revenue (Details)

v3.22.4
Revenue from Contracts with Customers Disaggregated Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]                      
Sales $ 182,740 $ 232,533 $ 225,172 $ 179,714 $ 170,197 $ 167,428 $ 146,952 $ 126,624 $ 820,159 $ 611,201 $ 495,920
Ecoservices                      
Disaggregation of Revenue [Line Items]                      
Sales                 702,472 500,513 401,913
Silica Catalyts                      
Disaggregation of Revenue [Line Items]                      
Sales                 117,687 110,688 94,007
Operating segments                      
Disaggregation of Revenue [Line Items]                      
Sales                 820,159 611,201 495,920
Operating segments | Clean fuels, emission control & other                      
Disaggregation of Revenue [Line Items]                      
Sales                 28,966 25,673 11,955
Operating segments | Polymers & engineered plastics                      
Disaggregation of Revenue [Line Items]                      
Sales                 117,687 110,688 94,007
Operating segments | Regeneration and treatment services                      
Disaggregation of Revenue [Line Items]                      
Sales                 342,645 262,026 233,122
Operating segments | Industrial, mining & automotive                      
Disaggregation of Revenue [Line Items]                      
Sales                 330,861 212,814 156,836
Operating segments | Ecoservices                      
Disaggregation of Revenue [Line Items]                      
Sales                 702,472 500,513 401,913
Operating segments | Ecoservices | Clean fuels, emission control & other                      
Disaggregation of Revenue [Line Items]                      
Sales                 28,966 25,673 11,955
Operating segments | Ecoservices | Polymers & engineered plastics                      
Disaggregation of Revenue [Line Items]                      
Sales                 0 0 0
Operating segments | Ecoservices | Regeneration and treatment services                      
Disaggregation of Revenue [Line Items]                      
Sales                 342,645 262,026 233,122
Operating segments | Ecoservices | Industrial, mining & automotive                      
Disaggregation of Revenue [Line Items]                      
Sales                 330,861 212,814 156,836
Operating segments | Silica Catalyts                      
Disaggregation of Revenue [Line Items]                      
Sales                 117,687 110,688 94,007
Operating segments | Silica Catalyts | Clean fuels, emission control & other                      
Disaggregation of Revenue [Line Items]                      
Sales                 0 0 0
Operating segments | Silica Catalyts | Polymers & engineered plastics                      
Disaggregation of Revenue [Line Items]                      
Sales                 117,687 110,688 94,007
Operating segments | Silica Catalyts | Regeneration and treatment services                      
Disaggregation of Revenue [Line Items]                      
Sales                 0 0 0
Operating segments | Silica Catalyts | Industrial, mining & automotive                      
Disaggregation of Revenue [Line Items]                      
Sales                 $ 0 $ 0 $ 0