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 ($)
 1 Months Ended 3 Months Ended 5 Months Ended
Dec. 06, 2018
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2019
Oct. 31, 2018
Goodwill     $ 237,438,000 $ 237,438,000 $ 74,656,000
CPH Acquisition [Member]          
Cash $ 445,386,000     449,434,000  
Fair value of rollover equity 164,908,000        
Net working capital adjustment 4,048,000   $ 4,000,000    
Total consideration paid 614,342,000        
Current assets 49,112,000        
Intangible assets 220,700,000        
Property and equipment 223,174,000        
Liabilities assumed (115,317,000)        
Total net assets acquired 377,669,000        
Goodwill 236,673,000        
Cash, net of cash acquired 445,386,000     449,434,000  
Total consideration paid 614,342,000        
Intangible assets $ 220,700,000        
O’Brien Acquisition [Member]          
Cash   $ 21,000,000    
Total consideration paid   21,000,000      
Intangible assets   2,810,000      
Property and equipment   16,163,000      
Goodwill   1,887,000      
Cash, net of cash acquired   21,000,000    
Total consideration paid   21,000,000      
Inventory   140,000      
Intangible assets   2,810,000      
Total net assets acquired   $ 19,113,000