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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Income Tax Disclosure [Abstract]        
Provision for (benefit from) income taxes $ 2,090 $ 1,417 $ (2,623) $ 4,164