INVESTMENTS IN PARTNERSHIPS AND VENTURES (Schedule of Balance Sheet Accounts Related to Equity Method Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Solar Facilities Investment [Member]
Schedule of Equity Method Investments [Line Items]
Total assets	$ 449,917	$ 279,960
Other Liabilities	26,421	12,833
U.S. Real Estate Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Total assets	53,251	56,238
Debt	6,287	6,530
Other Liabilities	32,271	32,165
SAWHF
Schedule of Equity Method Investments [Line Items]
Total assets	63,592	74,803
Other Liabilities	$ 93	$ 496