Leases - Additional Information (Details) $ in Millions	12 Months Ended	24 Months Ended
Feb. 02, 2025 USD ($)	Feb. 02, 2025 USD ($)
Leases [Abstract]
Finance lease term	3 years	3 years
Lessor arrangement, term of contract		7 years
Non-cancelable lease payments receivable, net	$ 134.8	$ 174.8
Sales-type lease, revenue	47.4
Sales-type lease, selling profit	36.1
Subscription and non-lease components of service revenue	$ 7.2

Lessor Arrangement, Non-Cancelable Lease Payments Receivable, Net

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Lessor Arrangement, Term of Contract

+ References

No definition available.

+ Details

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- Definition

Subscription and Non-Lease Components Of Service Revenue

+ References

No definition available.

+ Details

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Namespace Prefix:	pstg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of sales-type lease revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of profit (loss) recognized at commencement from sales-type lease.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration