Annual report pursuant to Section 13 and 15(d)

Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions

v3.20.2
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions - Customer relationships [Member]
12 Months Ended
Jul. 31, 2020
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Weighted average remaining useful life 2 years
Minimum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 8 years
Maximum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 15 years