Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Feb. 01, 2021 USD ($)	Jan. 31, 2022 USD ($) Source	Jan. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)
Significant Accounting Policies [Line Items]
Number of revenue sources | Source		3
Sales commission estimated period of amortization on straight-line basis		5 years
Deferred sales commissions costs		$ 59,200,000	$ 48,000,000.0	$ 44,000,000.0
Amortized deferred commissions		45,900,000	36,100,000	25,900,000
Foreign currency translation adjustments		4,500,000	0
Foreign currency transaction losses		$ 3,700,000	2,500,000	1,100,000
Cash and cash equivalents liquid investments original maturity period		90 days
Goodwill impairment		$ 0	0
Advertising costs		$ 16,600,000	15,000,000.0	$ 25,600,000
Measured tax percentage of likelihood realized upon settlement		50.00%
Decrease in accumulated deficit		$ (1,362,579,000)	(1,321,679,000)
Decrease in additional paid-in capital		$ 972,020,000	$ 1,473,666,000
ASU 2019-12
Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]		true
Change in Accounting Principle, Accounting Standards Update, Adoption Date		Feb. 01, 2021
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]		true
ASU 2020-06
Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adoption Date		Feb. 01, 2021
Change in Accounting Principle, Accounting Standards Update, Early Adoption [true false]		true
Decrease in accumulated deficit	$ 600,000
Decrease in additional paid-in capital	(68,600,000)
Increase of debt, net, non current	$ 68,000,000.0
Credit Concentration Risk | Accounts Receivable
Significant Accounting Policies [Line Items]
Number of major customers		one	one
Credit Concentration Risk | Accounts Receivable | Significant Customer
Significant Accounting Policies [Line Items]
Concentration risk percentage		10.00%	10.00%
Customer Concentration Risk | Revenue
Significant Accounting Policies [Line Items]
Number of major customers		No	No	One
Customer Concentration Risk | Revenue | Significant Customer
Significant Accounting Policies [Line Items]
Concentration risk percentage		10.00%	10.00%	10.00%
Geographic Concentration Risk | Revenue | United States
Significant Accounting Policies [Line Items]
Concentration risk percentage		68.00%	72.00%	75.00%
Geographic Concentration Risk | Revenue | Japan
Significant Accounting Policies [Line Items]
Concentration risk percentage		18.00%	14.00%	10.00%
Geographic Concentration Risk | Property and Equipment | United States
Significant Accounting Policies [Line Items]
Concentration risk percentage		95.00%	96.00%
Maximum
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives		5 years
Period of subscription and premier services contracts		3 years
Finite-lived intangible assets estimated useful lives		7 years
Minimum
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives		3 years
Period of subscription and premier services contracts		1 year
Finite-lived intangible assets estimated useful lives		2 years
Internal-Use Software
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives		3 years
Internal-Use Software Costs Include On-Premises Software | Maximum
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives		5 years