INVESTMENTS IN PARTNERSHIPS (Schedule of Real Estate Investment Partnerships) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Total investments in partnerships	$ 368,598	$ 316,677
Solar Ventures Investment [Member]
Schedule of Equity Method Investments [Line Items]
Total investments in partnerships	344,601	289,123
U.S. Real Estate Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Total investments in partnerships	19,236	19,822
SAWHF
Schedule of Equity Method Investments [Line Items]
Total investments in partnerships	$ 4,761	$ 7,732