XML 103 R93.htm IDEA: XBRL DOCUMENT
v3.23.3

Other Assets - Summary of Taxable MRBs and and GILs Acquired (Details) | 9 Months Ended
--- | ---
Sep. 30, 2023 USD ($) Unit | Sep. 30, 2022 USD ($)
Mortgage Revenue Bonds [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Initial Principal Funding |  | $ 2,805,000 |
Taxable MRB, Total Commitment |  |  | $ 16,625,000
Mortgage Revenue Bonds [Member] | Windsor Shores Apartments - Series B [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Month Acquired |  | 2023-01 |
Taxable MRB, Property Location |  | Columbia, SC |
Number of Loans | Unit |  | 176 |
Date Committed |  | 2023-01 |
Maturity Date |  | Feb. 01, 2030 |
Taxable MRB, Interest Rate |  | 6.50% |
Taxable MRB, Initial Principal Funding |  | $ 805,000 |
Mortgage Revenue Bonds [Member] | Village at Hanford Square [Member] | Series H-T [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Month Acquired | [1] | 2023-05 |
Taxable MRB, Property Location | [1] | Hanford, CA |
Number of Loans | Unit | [1] | 100 |
Date Committed | [1] | 2023-05 |
Maturity Date | [1] | May 01, 2030 |
Taxable MRB, Interest Rate | [1] | 7.25% |
Taxable MRB, Initial Principal Funding | [1] | $ 1,000,000 |
Mortgage Revenue Bonds [Member] | Forty on Colony [Member] | Series P-T [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Month Acquired | [2] | 2023-06 |
Taxable MRB, Property Location | [2] | La Mesa, CA |
Number of Loans | Unit | [2] | 40 |
Date Committed | [2] | 2023-06 |
Maturity Date | [2] | Jun. 01, 2030 |
Taxable MRB, Interest Rate | [2] | 7.45% |
Taxable MRB, Initial Principal Funding | [2] | $ 1,000,000 |
Mortgage Revenue Bonds [Member] | Live 929 Apartments - Series 2022B [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Month Acquired |  |  | 2022-01
Date Committed |  |  | 2022-01
Maturity Date |  |  | Jan. 01, 2029
Taxable MRB, Initial Principal Funding |  |  | $ 3,625,000
Taxable MRB, Total Commitment |  |  | $ 3,625,000
Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-T [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable MRB, Month Acquired | [3] |  | 2022-04
Date Committed | [3] |  | 2022-04
Maturity Date | [3] |  | Apr. 01, 2025
Taxable MRB, Initial Principal Funding | [3] |  | $ 1,000,000
Taxable MRB, Total Commitment | [3] |  | 13,000,000
Governmental Issuer Loans [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Taxable GIL, Total Commitment |  |  | $ 56,579,465
Governmental Issuer Loans [Member] | Poppy Grove I [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Maturity Date | [3] |  | Apr. 01, 2025
Taxable GIL, Month Acquired | [3] |  | 2022-09
Taxable GIL, Initial Principal Funding | [3] |  | $ 1,000,000
Taxable GIL, Total Commitment | [3] |  | $ 21,157,672
Governmental Issuer Loans [Member] | Poppy Grove II [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Maturity Date | [3] |  | Apr. 01, 2025
Taxable GIL, Month Acquired | [3] |  | 2022-09
Taxable GIL, Initial Principal Funding | [3] |  | $ 1,000,000
Taxable GIL, Total Commitment | [3] |  | $ 10,941,300
Governmental Issuer Loans [Member] | Poppy Grove III [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Maturity Date | [3] |  | Apr. 01, 2025
Taxable GIL, Month Acquired | [3] |  | 2022-09
Taxable GIL, Initial Principal Funding | [3] |  | $ 1,000,000
Taxable GIL, Total Commitment | [3] |  | $ 24,480,493
[1] | The Partnership has committed to provide total funding for the taxable MRB of $10.4 million (see Note 19).
[2] | The Partnership has committed to provide total funding for the taxable MRB of $6.0 million (see Note 19).
[3] | The borrower has the option to extend the maturity up to six months upon payment of a non-refundable extension fee.

X
- Definition Governmental issuer loans. + References No definition available. + Details
Name: | ghi_GovernmentalIssuerLoansLineItems
Namespace Prefix: | ghi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Mortgage loan on real estate property location + References No definition available. + Details
Name: | ghi_MortgageLoanOnRealEstatePropertyLocation
Namespace Prefix: | ghi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Taxable governmental issuer loan and remaining funding commitment year and month. + References No definition available. + Details
Name: | ghi_TaxableGovernmentalIssuerLoanAndRemainingFundingCommitmentYearAndMonth
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Taxable governmental issuer loans bonds commitment. + References No definition available. + Details
Name: | ghi_TaxableGovernmentalIssuerLoansBondsCommitment
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Taxable governmental issuer loans initial principal acquired. + References No definition available. + Details
Name: | ghi_TaxableGovernmentalIssuerLoansInitialPrincipalAcquired
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Taxable mortgage revenue bond - Initial principal acquired. + References No definition available. + Details
Name: | ghi_TaxableMortgageRevenueBondInitialPrincipalAcquired
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Taxable mortgage revenue bonds and remaining funding commitment year and month. + References No definition available. + Details
Name: | ghi_TaxableMortgageRevenueBondsAndRemainingFundingCommitmentYearAndMonth
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Taxable mortgage revenue bonds commitment. + References No definition available. + Details
Name: | ghi_TaxableMortgageRevenueBondsCommitment
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maturity date of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column C -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column C)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
Name: | srt_MortgageLoanOnRealEstateFinalMaturityDate
Namespace Prefix: | srt_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest rate of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column B -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column B)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstateInterestRate
Namespace Prefix: | srt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Footnote 3 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
Name: | srt_MortgageLoansOnRealEstateNumberOfLoans
Namespace Prefix: | srt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ghi_MortgageRevenueBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesHTMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesPTMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_Live929ApartmentsSeries2022BMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesJTMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ghi_GovernmentalIssuerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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