XML 116 R48.htm IDEA: XBRL DOCUMENT v3.22.2.2
Leases - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2021
Jul. 31, 2021
Leases [Abstract]    
Rent expense $ 1.6 $ 3.2