Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Cash Paid Per Acquiree Share

No definition available.

Name:	pkst_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare
Namespace Prefix:	pkst_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Termination Fee

+ References

No definition available.

+ Details

Name:	pkst_BusinessCombinationTerminationFee
Namespace Prefix:	pkst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Operating Real Estate Properties

+ References

No definition available.

+ Details

Name:	pkst_NumberOfOperatingRealEstateProperties
Namespace Prefix:	pkst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Real Estate Properties Designated For Redevelopment Or Repositioning

+ References

No definition available.

+ Details

Name:	pkst_NumberOfRealEstatePropertiesDesignatedForRedevelopmentOrRepositioning
Namespace Prefix:	pkst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Real Estate Properties Sold

+ References

No definition available.

+ Details

Name:	pkst_NumberOfRealEstatePropertiesSold
Namespace Prefix:	pkst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 47
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-47

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 54
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-54

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-18

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiarySaleOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=pkst_PeakstoneRealtyTrustAndOtherPartiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=pkst_OperatingPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=pkst_IndustrialSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=pkst_IOSPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=pkst_TraditionalIndustrialPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=pkst_OfficeSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=pkst_GCEAROperatingPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization (Details) $ / shares in Units, $ in Millions		3 Months Ended	12 Months Ended
Organization (Details) $ / shares in Units, $ in Millions	Feb. 02, 2026 USD ($) $ / shares	Mar. 31, 2026 property segment $ / shares	Dec. 31, 2025 property $ / shares
Subsidiary, Sale of Stock [Line Items]
Number of properties disposed		0
Common stock, par value (in usd per share) \| $ / shares	$ 0.001	$ 0.001	$ 0.001
Peakstone Realty Trust and Other Parties \| Minimum
Subsidiary, Sale of Stock [Line Items]
Merger agreement termination payment \| $	$ 16.0
Peakstone Realty Trust and Other Parties \| Maximum
Subsidiary, Sale of Stock [Line Items]
Merger agreement termination payment \| $	$ 34.0
Operating Partnership \| Peakstone Realty Trust and Other Parties
Subsidiary, Sale of Stock [Line Items]
Equity interests issued and issuable, cash paid per acquiree share (in usd per share) \| $ / shares	$ 21.00
Industrial Segment
Subsidiary, Sale of Stock [Line Items]
Number of properties		77
Number of reportable segments \| segment		1
Number of operating real estate properties		73
Number of real estate properties designated for redevelopment or repositioning		4
Industrial Segment \| IOS Properties
Subsidiary, Sale of Stock [Line Items]
Number of properties		61
Industrial Segment \| Traditional Industrial Properties
Subsidiary, Sale of Stock [Line Items]
Number of properties		16
Office Segment \| Discontinued Operations
Subsidiary, Sale of Stock [Line Items]
Number of properties disposed			27
GCEAR Operating Partnership
Subsidiary, Sale of Stock [Line Items]
Ownership interest (as a percent)		93.20%