XML 62 R48.htm IDEA: XBRL DOCUMENT v3.20.4
Goodwill (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Goodwill [Line Items]        
Impairment of goodwill $ 0 $ (25,784) $ 0  
Goodwill [Roll Forward]        
Beginning balance $ 0 25,859    
Goodwill acquired during the year       $ 19,223
Goodwill adjustments   (75)    
Ending balance   $ 0 25,859  
Water & Flowback Services [Member]        
Goodwill [Line Items]        
Number of Reporting Units 2      
Goodwill [Roll Forward]        
Beginning balance     $ 6,636  
Ending balance       $ 6,636