Current report filing

Investments in Affiliated Companies - Ownership Percentage (Details)

v3.21.2
Investments in Affiliated Companies - Ownership Percentage (Details)
Dec. 31, 2020
Zeolyst International  
Schedule of Equity Method Investments  
Ownership percentage 50.00%
Zeolyst C.V.  
Schedule of Equity Method Investments  
Ownership percentage 50.00%