Leases - Narrative (Details)	3 Months Ended
	Oct. 31, 2021 optionsToExtend
Lessee, Lease, Description [Line Items]
Number of options to extend	1
Option to extend operating leases	10 years
Option to extend sublease	5 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease terms	11 years
Operating sublease terms	4 years