XML 51 R41.htm IDEA: XBRL DOCUMENT v3.22.0.1
Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2022
Jan. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]        
Aggregate amortization expense $ 1.8 $ 1.8 $ 3.7 $ 3.5