XML 140 R128.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Commitments and Contingencies - Summary of Partnership's Maximum Exposure Under Guaranty Agreements (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Vantage at McKinney Falls [Member] |
Long-term Purchase Commitment [Line Items] |
Guarantee Maturity | 2026
Maximum Balance Available on Loan | $ 35,850,000
Loan Balance as of December 31, 2024 | 35,850,000
Partnership's Maximum Exposure as of December 31, 2024 | 17,925,000
Ohio Properties [Member] |
Long-term Purchase Commitment [Line Items] |
Partnership's Maximum Exposure as of December 31, 2024 | $ 1,609,695
End of Guaranty Period | 2026
Greens of Pine Glen [Member] |
Long-term Purchase Commitment [Line Items] |
Partnership's Maximum Exposure as of December 31, 2024 | $ 1,278,767
End of Guaranty Period | 2027

X
- Definition Construction loan amount outstanding. + References No definition available. + Details
Name: | ghi_ConstructionLoanAmountOutstanding
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Construction loan maximum available amount. + References No definition available. + Details
Name: | ghi_ConstructionLoanMaximumAvailableAmount
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Guarantees expiration year. + References No definition available. + Details
Name: | ghi_GuaranteesExpirationYear
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Year Of Guarantee Agreement Term Ending . + References No definition available. + Details
Name: | ghi_YearOfGuaranteeAgreementTermEnding
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_LongTermPurchaseCommitmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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