XML 26 R66.htm IDEA: XBRL DOCUMENT v3.19.3
Restructuring Charges - Summary of Reconciliation of Restructuring Liability (Details)
$ in Thousands
3 Months Ended
Oct. 31, 2019
USD ($)
Restructuring Cost And Reserve [Line Items]  
Total restructuring charges $ 3,085
Accrued Expenses  
Restructuring Cost And Reserve [Line Items]  
Total restructuring charges 1,504
Restructuring liability $ 1,504