XML 129 R59.htm IDEA: XBRL DOCUMENT
v3.21.1

Noncontrolling Interests - Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2021 shares
Noncontrolling Interest [Line Items] |
Percentage of noncontrolling interests based on weighted average shares outstanding (percent) | 10.63%
Limited partnership units issued (in shares) | 31,800,000
Limited partnership units with mandatory hold period (in shares) | 20,400,000
Implied EA-1 operating partnership units issued in consideration (in shares) | 200,000
Partnership unit exchange (in shares) | 1
Griffin Capital Essential Asset Operating Partnership, L.P. |
Noncontrolling Interest [Line Items] |
Percentage of noncontrolling interests based on total shares (percent) | 9.00%

X
- Definition Limited Partners' Capital Account, Units Issued in Exchange for Property + References No definition available. + Details
Name: | gcnl_LimitedPartnersCapitalAccountUnitsIssuedinExchangeforProperty
Namespace Prefix: | gcnl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Limited Partners' Capital Account, Units With Mandatory Hold Period Issued in Exchange for Property + References No definition available. + Details
Name: | gcnl_LimitedPartnersCapitalAccountUnitsWithMandatoryHoldPeriodIssuedinExchangeforProperty
Namespace Prefix: | gcnl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Partnership unit exchange in share. + References No definition available. + Details
Name: | gcnl_PartnershipUnitExchangeInShare
Namespace Prefix: | gcnl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of noncontrolling interests based on weighted average shares. + References No definition available. + Details
Name: | gcnl_PercentageOfNoncontrollingInterestsBasedOnWeightedAverageShares
Namespace Prefix: | gcnl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of limited partner units issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770 + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- 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_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=gcnl_GriffinCapitalEssentialAssetOperatingPartnershipL.P.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |