Income Taxes - Liability For Uncertain Tax Positions (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Income Tax Contingency [Line Items]
Total accrued taxes	$ 25,010	$ 25,501
Deferred tax assets - non-current
Income Tax Contingency [Line Items]
Total accrued taxes	16,256	15,770
Other long-term liabilities
Income Tax Contingency [Line Items]
Total accrued taxes	$ 8,754	$ 9,731