XML 99 R86.htm IDEA: XBRL DOCUMENT v3.21.2
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2021
Jul. 31, 2020
Income Tax Disclosure [Abstract]        
Provision for (benefit from) income taxes $ (3,871) $ (191) $ (4,713) $ 2,747