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DEBT - September Note Purchase Agreement, Schedule of Debt (Details) - USD ($)	1 Months Ended
	Nov. 30, 2022	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2021
Line of Credit Facility [Line Items]
Total debt		$ 921,659,000	$ 1,011,777,000
Series A | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 75,000,000
Interest Rate		3.84%
Series B | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 50,000,000
Interest Rate		3.69%
Series C | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 50,000,000
Interest Rate		2.70%
Series 2021-A | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 35,000,000
Interest Rate		2.50%
Series 2021-B | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 50,000,000
Interest Rate		2.62%
Series 2021-C | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 25,000,000
Interest Rate		2.68%
Series 2021-D | Unsecured Debt
Line of Credit Facility [Line Items]
Amount		$ 15,000,000
Interest Rate		2.78%
PNC Bank Term Loan Agreement | Unsecured Debt
Line of Credit Facility [Line Items]
Amount	$ 100,000,000
Term	364 days
Total debt			100,000,000
PNC Bank Term Loan Agreement | Unsecured Debt | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.20%
PNC Bank Term Loan Agreement | Unsecured Debt | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.75%
Mortgages payable - Fannie Mae | Mortgages
Line of Credit Facility [Line Items]
Amount				$ 198,900,000
Total debt		$ 198,850,000	$ 198,850,000

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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