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REAL ESTATE INVESTMENTS - Unamortized Balances of Intangible Lease Assets and Liabilities (Details) - Rental income, net $ in Thousands	Dec. 31, 2020 USD ($)
Amortization of intangible lease liabilities - below market leases
2020	$ 1,402
2021	1,160
2022	922
2023	694
2024	488
Thereafter	6,523
Total	11,189
Intangible lease asset - above market lease
Amortization of intangible lease assets - above market leases
2020	647
2021	481
2022	288
2023	218
2024	195
Thereafter	546
Total	$ 2,375

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Amount of amortization income for lease with finite life acquired as part of real property acquisition at below market lease rate expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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