INVESTMENTS IN PARTNERSHIPS AND VENTURES (Schedule of Balance Sheet Accounts Related to Equity Method Investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Solar Facilities Investment and Solar Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Total assets	$ 360,056	$ 279,960
Other Liabilities	25,950	12,833
U.S. Real Estate Partnerships
Schedule of Equity Method Investments [Line Items]
Total assets	53,537	56,238
Debt	6,114	6,530
Other Liabilities	31,732	32,165
SAWHF
Schedule of Equity Method Investments [Line Items]
Total assets	71,544	74,803
Other Liabilities	$ 165	$ 496