XML 126 R56.htm IDEA: XBRL DOCUMENT
v3.21.1

Equity - Schedule of Sale of Stock by Subsidiary or Equity Method Investee Disclosure (Details) - Distribution Reinvestment Plan $ in Thousands | 5 Months Ended
--- | ---
Dec. 31, 2020 USD ($) shares
Class of Stock [Line Items] |
Amount | $ | $ 325,353
Gross proceeds from issuance of common stock (in shares) | shares | 33,782,573
Common Class T |
Class of Stock [Line Items] |
Amount | $ | $ 133
Gross proceeds from issuance of common stock (in shares) | shares | 14,286
Common Class S |
Class of Stock [Line Items] |
Amount | $ | $ 0
Gross proceeds from issuance of common stock (in shares) | shares | 12
Common Class D |
Class of Stock [Line Items] |
Amount | $ | $ 15
Gross proceeds from issuance of common stock (in shares) | shares | 1,614
Common Class E |
Class of Stock [Line Items] |
Amount | $ | $ 301,312
Gross proceeds from issuance of common stock (in shares) | shares | 31,186,771
Common Class I |
Class of Stock [Line Items] |
Amount | $ | $ 348
Gross proceeds from issuance of common stock (in shares) | shares | 37,271
Common Class A |
Class of Stock [Line Items] |
Amount | $ | $ 7,837
Gross proceeds from issuance of common stock (in shares) | shares | 846,370
Common Class AA |
Class of Stock [Line Items] |
Amount | $ | $ 15,474
Gross proceeds from issuance of common stock (in shares) | shares | 1,670,921
Common Class AAA |
Class of Stock [Line Items] |
Amount | $ | $ 234
Gross proceeds from issuance of common stock (in shares) | shares | 25,328

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

X
- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfPrivatePlacement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=gcnl_DistributionReinvestmentPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassAAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=gcnl_CommonClassAAAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |