Fair Value Measurements - Assets and Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Liabilities
Common stock warrant liabilities	$ 29,282	$ 75,843
Fair Value, Recurring
Assets
Total financial assets	254,714	109,703
Liabilities
Contingent earnout liability recognized upon acquisition of ViriCiti (ViriCiti Earnout)	3,856
Total financial liabilities	33,138	75,843
Fair Value, Recurring \| Private Placement Warrants
Liabilities
Common stock warrant liabilities	29,282
Fair Value, Recurring \| Redeemable convertible preferred stock warrant liability
Liabilities
Common stock warrant liabilities	75,843
Fair Value, Recurring \| Money market funds
Assets
Money market funds	254,714	109,703
Fair Value, Recurring \| Level 1
Assets
Total financial assets	254,714	109,703
Liabilities
Contingent earnout liability recognized upon acquisition of ViriCiti (ViriCiti Earnout)	0
Total financial liabilities	0	0
Fair Value, Recurring \| Level 1 \| Private Placement Warrants
Liabilities
Common stock warrant liabilities	0
Fair Value, Recurring \| Level 1 \| Redeemable convertible preferred stock warrant liability
Liabilities
Common stock warrant liabilities	0
Fair Value, Recurring \| Level 1 \| Money market funds
Assets
Money market funds	254,714	109,703
Fair Value, Recurring \| Level 2
Assets
Total financial assets	0	0
Liabilities
Contingent earnout liability recognized upon acquisition of ViriCiti (ViriCiti Earnout)	0
Total financial liabilities	0	0
Fair Value, Recurring \| Level 2 \| Private Placement Warrants
Liabilities
Common stock warrant liabilities	0
Fair Value, Recurring \| Level 2 \| Redeemable convertible preferred stock warrant liability
Liabilities
Common stock warrant liabilities	0
Fair Value, Recurring \| Level 2 \| Money market funds
Assets
Money market funds	0	0
Fair Value, Recurring \| Level 3
Assets
Total financial assets	0	0
Liabilities
Contingent earnout liability recognized upon acquisition of ViriCiti (ViriCiti Earnout)	3,856
Total financial liabilities	33,138	75,843
Fair Value, Recurring \| Level 3 \| Private Placement Warrants
Liabilities
Common stock warrant liabilities	29,282
Fair Value, Recurring \| Level 3 \| Redeemable convertible preferred stock warrant liability
Liabilities
Common stock warrant liabilities	75,843
Fair Value, Recurring \| Level 3 \| Money market funds
Assets
Money market funds	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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