Commitments and Contingencies - Schedule of Minimum Lease Payments, Net of Reimbursements, under Operating Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
2022	$ (1,584)
2023	1,833
2024	1,814
2025	1,869
2026	1,925
Thereafter	11,477
Total minimum lease payments	17,334
Less: Amounts representing imputed interest	(4,740)
Present value of lease liabilities	$ 12,594	$ 11,193

Lessee operating lease liability payments, net of reimbursements, due next twelve months.

No definition available.

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

- Definition

Lessee operating lease liability payments, net of reimbursements, due year four.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmvp_
Data Type:	xbrli:monetaryItemType
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- Definition

Lessee operating lease liability payments, net of reimbursements, due year three.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Lessee operating lease liability payments, net of reimbursements, due year two.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmvp_
Data Type:	xbrli:monetaryItemType
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- Definition

Lessee operating lease liability payments, net of reimbursements, remainder of fiscal year.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmvp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Lessee operating lease liability payments, net of repayments, due.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmvp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Lessee operating lease liability to be paid, net of repayments, after year four.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmvp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

+ Details

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Balance Type:	credit
Period Type:	instant