XML 64 R51.htm IDEA: XBRL DOCUMENT v3.20.4
ACQUISITIONS AND DIVESTITURES - Rockwater Merger (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Less: identified assets acquired and liabilities assumed    
Goodwill $ 266,934 $ 273,801
Water Solutions    
Less: identified assets acquired and liabilities assumed    
Goodwill   $ 266,801