CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) (PARENTHETICAL) - USD ($) $ in Thousands	9 Months Ended
Oct. 31, 2020	Oct. 31, 2019
Redeemable Convertible Preferred Stock, Series F
Price per share (in dollars per share)		$ 14.96125
Redeemable Convertible Preferred Stock, Series G-1 And G-2
Price per share (in dollars per share)	$ 38.77
Issuance costs	$ 230

The cash outflow for cost incurred directly with the issuance of an equity security.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

Name:	us-gaap_PaymentsOfStockIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration