Balance Sheet Components - Schedule of Operating Lease Right-of-Use Assets, Net (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Jan. 31, 2021
Balance Sheet Related Disclosures [Abstract]
Operating lease right-of-use assets	$ 270,331	$ 270,428
Less: accumulated amortization	(86,930)	(76,175)
Operating lease right-of-use assets, net	$ 183,401	$ 194,253

Amount of lessee's right to use underlying asset under operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant