Leases (Details) - USD ($) $ in Thousands	9 Months Ended
Oct. 31, 2022	Oct. 31, 2021
Lessee, Lease, Description
Losses on facility exits	$ 10,000	$ 52,524
San Jose Lease
Lessee, Lease, Description
Losses on facility exits		$ 55,200

Amount of gain (loss) on termination of lease before expiration of lease term.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 40
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975

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