Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Business Combinations - Preliminary Allocation of Consideration to the Assets Acquired and Liabilities Assumed (Details)

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Note 4 - Business Combinations - Preliminary Allocation of Consideration to the Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended
May 15, 2019
Dec. 06, 2018
Dec. 05, 2018
Apr. 30, 2018
Jul. 31, 2019
Jul. 31, 2019
Jul. 31, 2018
Apr. 30, 2019
Oct. 31, 2018
Goodwill         $ 277,051 $ 277,051   $ 237,440 $ 74,656
Capital Pumping [Member]                  
Consideration paid: $ 129,218                
Current assets 81                
Intangible assets 45,000                
Property and equipment 56,467                
Liabilities assumed (63)                
Total net assets acquired 101,485                
Goodwill 27,733                
Cash         129,218    
Total consideration paid 129,218                
Total net assets acquired $ 101,485                
CPH Acquisition [Member]                  
Consideration paid:   $ 614,342              
Current assets   49,112              
Intangible assets   208,063              
Property and equipment   219,467              
Liabilities assumed   (112,048)              
Total net assets acquired   364,594              
Goodwill   249,748              
Cash   445,386 [1]     449,434    
Fair value of rollover equity   164,908              
Net working capital adjustment   4,048     $ 3,500        
Total consideration paid   614,342              
Total net assets acquired   $ 364,594              
O’Brien Acquisition [Member]                  
Consideration paid:       $ 21,000          
Intangible assets       2,810          
Property and equipment       16,163          
Goodwill       1,887          
Cash     21,000   $ 21,000    
Total consideration paid       21,000          
Inventory       140          
Total net assets acquired       $ 19,113          
[1] Note: Cash in table above is net of $1.0 million in cash acquired