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
Jan. 31, 2021
Income Tax Examination [Line Items]          
Provision for income taxes $ 4,238 $ 441 $ 54,300 $ 1,477  
Effective tax rate (8.00%) (1.50%) (61.70%) (3.10%)  
Gross unrecognized tax benefits $ 56,900   $ 56,900   $ 24,400
Unrecognized tax benefits including interest and penalties $ 22,900   22,900   $ 600
Foreign Tax Authority          
Income Tax Examination [Line Items]          
Provision for income taxes     $ 48,800