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Goodwill (Tables)
 12 Months Ended
Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of change in carrying amount of goodwill
The change in the carrying amount of goodwill was as follows:
 
 
July 31,
(In thousands)
 
2019
 
2018
Beginning balance
 
$
337,235

 
$
340,243

Goodwill adjustments and acquisitions during the period
 
563

 
(1,839
)
Effect of foreign currency exchange rates
 
(4,477
)
 
(1,169
)
Ending balance
 
$
333,321

 
$
337,235