SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) segment variableInterestEntity investment	Dec. 31, 2023 USD ($) investment	Dec. 31, 2022 USD ($)
Accounting Policies [Line Items]
Number of investments in loans accounted for as real estate joint ventures | investment	0	0
Government Grants
Government grants	$ 0	$ 100,000
Assets held for sale	0	0
Restricted cash	5,871,000	5,434,000
Restricted cash obligations	$ 5,500,000	$ 1,400,000
Number of reportable segments | segment	1
Sales
Government Grants
Government grants			$ 100,000
Government assistance, income, increase (decrease), statement of income or comprehensive income		Resident fees and services	Resident fees and services
Loss From Unconsolidated Joint Ventures
Government Grants
Government grants			$ 3,600,000
Government assistance, income, increase (decrease), statement of income or comprehensive income			Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Minimum | Land improvements
Accounting Policies [Line Items]
Estimated useful lives of assets	15 years
Minimum | Buildings and building improvements
Accounting Policies [Line Items]
Estimated useful lives of assets	5 years
Minimum | Furniture and equipment
Accounting Policies [Line Items]
Estimated useful lives of assets	3 years
Maximum | Land improvements
Accounting Policies [Line Items]
Estimated useful lives of assets	20 years
Maximum | Buildings and building improvements
Accounting Policies [Line Items]
Estimated useful lives of assets	40 years
Maximum | Furniture and equipment
Accounting Policies [Line Items]
Estimated useful lives of assets	10 years
Primary beneficiary
Accounting Policies [Line Items]
Number of variable interest entities | variableInterestEntity	0