Commitments and Contingencies - Summary of Restructuring Charges (Details) - Workforce Restructuring $ in Thousands	12 Months Ended
	Jan. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 9,942
Cost of revenue | Subscription services
Restructuring Cost and Reserve [Line Items]
Restructuring charges	514
Cost of revenue | Professional services and other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	396
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6,568
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges	511
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,953