XML 130 R123.htm IDEA: XBRL DOCUMENT
v3.25.2

Transactions with Related Parties - Summary of Transactions Between Borrowers of Partnership's MRBs and Affiliates (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
General Partner [Member] |  |  |  |  |
Investment/mortgage placement fees earned | [1] | $ 86,000 | $ 1,544,000 | $ 250,000 | $ 1,569,000
[1] | The General Partner received placement fees in connection with the acquisition of certain MRBs, taxable MRBs, GILs, taxable GILs and property loans and investments in unconsolidated entities.

X
- Definition Investment/mortgage placement fees earned. + References No definition available. + Details
Name: | ghi_InvestmentMortgagePlacementFeesEarned
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_GeneralPartnerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |