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NONCONTROLLING INTERESTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
NONCONTROLLING INTERESTS    
Noncontrolling interests attributable to joint ventures formed for water-related services $ 1,161 $ 1,091
Noncontrolling interests attributable to holders of Class B Common Stock 104,941 101,987
Total noncontrolling interests $ 106,102 $ 103,078