XML 91 R80.htm IDEA: XBRL DOCUMENT
v3.23.2

Investments in Unconsolidated Entities - Summary of Sales Information of Partnership Investment in Unconsolidated Entities (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) Unit | Jun. 30, 2022 USD ($) Unit
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Gross Proceeds to the Partnership |  |  | $ 47,719,594 | $ 50,246,470
Investment Income from sale of properties |  |  | 2,309,404 | 657,937
Gain (loss) on Sale | $ 7,326,084 | $ 12,643,501 | $ 22,693,013 | $ 29,083,251
Omaha, NE [Member] | Vantage At Stone Creek [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  | 294 |
Month sold |  |  | 2023-01 |
Gross Proceeds to the Partnership |  |  | $ 14,689,244 |
Investment Income from sale of properties |  |  | 108,295 |
Gain (loss) on Sale |  |  | $ 9,114,980 |
Omaha, NE [Member] | Vantage At Coventry [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  | 294 |
Month sold |  |  | 2023-01 |
Gross Proceeds to the Partnership |  |  | $ 13,220,218 |
Investment Income from sale of properties |  |  | 135,501 |
Gain (loss) on Sale |  |  | $ 6,258,133 |
Murfreesboro, TN [Member] | Vantage At Murfreesboro [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  | 288 | 288
Month sold |  |  |  | 2022-03
Gross Proceeds to the Partnership |  |  | $ (6,184) | $ 29,258,279
Investment Income from sale of properties |  |  |  | 657,937
Gain (loss) on Sale |  |  | $ (6,184) | $ 16,360,343
San Antonio, TX [Member] | Vantage At O'Connor [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  | 288 |
Gross Proceeds to the Partnership |  |  | $ (11,744) |
Gain (loss) on Sale |  |  | $ (11,744) |
San Antonio, TX [Member] | Vantage At Westover Hills [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  |  | 288
Month sold |  |  |  | 2022-05
Gross Proceeds to the Partnership |  |  |  | $ 20,923,784
Gain (loss) on Sale |  |  |  | $ 12,658,501
Conroe T X [Member] | Vantage At Conroe [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  | 288 |
Month sold |  |  | 2023-06 |
Gross Proceeds to the Partnership |  |  | $ 19,828,060 |
Investment Income from sale of properties |  |  | 2,065,608 |
Gain (loss) on Sale |  |  | $ 7,337,828 |
Bulverde, TX [Member] | Vantage At Bulverde [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  |  | 288
Gross Proceeds to the Partnership |  |  |  | $ 60,000
Gain (loss) on Sale |  |  |  | $ 60,000
Germantown, TN [Member] | Vantage At Germantown [Member] |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Units | Unit |  |  |  | 288
Gross Proceeds to the Partnership |  |  |  | $ 4,407
Gain (loss) on Sale |  |  |  | $ 4,407

X
- Definition Gain or loss on sale of investment in unconsolidated entity. + References No definition available. + Details
Name: | ghi_GainOrLossOnSaleOfInvestmentInUnconsolidatedEntity
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of investment units sold. + References No definition available. + Details
Name: | ghi_NumberOfInvestmentUnitsSold
Namespace Prefix: | ghi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from payment to divestiture of real estate partnership. + References No definition available. + Details
Name: | ghi_ProceedsFromPaymentToDivestitureOfRealEstatePartnership
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sale of investment month. + References No definition available. + Details
Name: | ghi_SaleOfInvestmentMonth
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(a),(b)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
Name: | us-gaap_InvestmentIncomeInterestAndDividend
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_OmahaNeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtStoneCreekMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtCoventryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_MurfreesboroTNMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtMurfreesboroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_SanAntonioTexasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtOConnorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtWestoverHillsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_ConroeTXMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtConroeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_BulverdeTXMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtBulverdeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ghi_GermantownTNMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtGermantownMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |