XML 92 R82.htm IDEA: XBRL DOCUMENT v3.23.3

Investments in Unconsolidated Entities - Summary of Sales Information of Partnership Investment in Unconsolidated Entities (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) Unit	Sep. 30, 2022 USD ($) Unit
Schedule Of Equity Method Investments [Line Items]
Gross Proceeds to the Partnership			$ 47,751,979	$ 69,628,446
Investment Income from sale of properties			2,309,404	659,132
Gain (loss) on Sale	$ 32,385	$ 10,580,781	$ 22,725,398	$ 39,664,032
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	288
Month sold				2022-07
Gross Proceeds to the Partnership			$ (11,744)	$ 19,381,976
Investment Income from sale of properties				1,195
Gain (loss) on Sale			$ (11,744)	$ 10,580,781
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
Powdersville, SC [Member] | Vantage At Powdersville [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit			288
Gross Proceeds to the Partnership			$ 32,385
Gain (loss) on Sale			$ 32,385

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
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

+ 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-28

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

+ 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:

X

- Details

Name:	srt_StatementGeographicalAxis=ghi_PowdersvilleSCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtPowdersvilleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: