Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.1.9
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions
 6 Months Ended
Jan. 31, 2015
Customer Relationships [Member] | Minimum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 8 years
Customer Relationships [Member] | Maximum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 15 years
Customer Relationships [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Weighted average remaining useful life 5 years 6 months
Trademarks [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 5 years
Weighted average remaining useful life 2 years 6 months
Other Intangible Assets [Member] | Minimum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 4 years
Other Intangible Assets [Member] | Maximum [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 5 years
Other Intangible Assets [Member]  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Weighted average remaining useful life 6 months