XML 46 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1
Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
Aggregate amortization expense $ 2,900 $ 3,800
Effect of foreign currency exchange rates $ (2,115)