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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

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- Definition

Limited Partners' Capital Account, Units With Mandatory Hold Period Issued in Exchange for Property

+ References

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- Definition

Partnership unit exchange in share.

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- Definition

Percentage of noncontrolling interests based on weighted average shares.

+ References

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- 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

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- 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.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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