Annual report pursuant to Section 13 and 15(d)

Reportable Segments - Capital Expenditures (Details)

v3.22.0.1
Reportable Segments - Capital Expenditures (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets      
Capital expenditure $ 60,045 $ 54,837 $ 55,252
Operating segments | Ecoservices      
Revenues from External Customers and Long-Lived Assets      
Capital expenditures gross 43,561 31,799 42,310
Operating segments | Catalyst Technologies      
Revenues from External Customers and Long-Lived Assets      
Capital expenditures gross 15,997 11,177 8,984
Operating segments | Unallocated corporate expenses      
Revenues from External Customers and Long-Lived Assets      
Capital expenditures gross $ 487 $ 11,861 $ 3,958