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Revenue - Narrative (Details) - USD ($)
$ in Thousands
6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jan. 31, 2022
Revenue from External Customer [Line Items]      
Unearned revenue, current $ 165,889   $ 223,427
Unearned revenue, noncurrent 100    
Unearned revenue, revenue recognized 149,100    
Customer deposits $ 1,200   $ 200
Sales Revenue, Net | Product Concentration Risk | Professional Services      
Revenue from External Customer [Line Items]      
Concentration risk, percentage 9.00% 8.00%  
Sales Revenue, Net | Geographic Concentration Risk | UNITED STATES      
Revenue from External Customer [Line Items]      
Concentration risk, percentage 80.00% 79.00%  
Sales Revenue, Net | Geographic Concentration Risk | UNITED KINGDOM      
Revenue from External Customer [Line Items]      
Concentration risk, percentage 18.00% 19.00%