Stock Warrants and Earnout - Fair Value Inputs of Warrants and Contingent Earnout Liability (Details)	Jan. 31, 2022	Mar. 12, 2021	Feb. 26, 2021	Jan. 31, 2021	Jan. 31, 2020
Current stock price
Class of Warrant or Right [Line Items]
Contingent earnout liability, measurement input		27.84	30.83
Expected volatility
Class of Warrant or Right [Line Items]
Contingent earnout liability, measurement input		0.7200	0.7160
Risk-free interest rate
Class of Warrant or Right [Line Items]
Contingent earnout liability, measurement input		0.0085	0.0075
Dividend rate
Class of Warrant or Right [Line Items]
Contingent earnout liability, measurement input		0.0000	0.0000
Expected term (years)
Class of Warrant or Right [Line Items]
Contingent earnout liability, measurement input		4.96	5.00
Redeemable convertible preferred stock warrant | Expected volatility
Class of Warrant or Right [Line Items]
Warrants, measurement input			0.843	0.805	0.584
Redeemable convertible preferred stock warrant | Risk-free interest rate
Class of Warrant or Right [Line Items]
Warrants, measurement input			0.000	0.001	0.016
Redeemable convertible preferred stock warrant | Dividend rate
Class of Warrant or Right [Line Items]
Warrants, measurement input			0.000	0.000	0.000
Redeemable convertible preferred stock warrant | Expected term (years)
Class of Warrant or Right [Line Items]
Warrants, measurement input			0	1.4	2.0
Private Placement Warrants | Current stock price
Class of Warrant or Right [Line Items]
Warrants, measurement input	13.85		30.83
Private Placement Warrants | Exercise price
Class of Warrant or Right [Line Items]
Warrants, measurement input	11.50		11.50
Private Placement Warrants | Expected volatility
Class of Warrant or Right [Line Items]
Warrants, measurement input	0.705		0.735
Private Placement Warrants | Risk-free interest rate
Class of Warrant or Right [Line Items]
Warrants, measurement input	0.010		0.008
Private Placement Warrants | Dividend rate
Class of Warrant or Right [Line Items]
Warrants, measurement input	0.000		0.000
Private Placement Warrants | Expected term (years)
Class of Warrant or Right [Line Items]
Warrants, measurement input	4.1		5.0