SCHEDULE IV MORTGAGE LOANS RECEIVABLE (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance at beginning	$ 83,541	$ 70,166	$ 81,133
Additions
New mortgage loans	49,671	13,123	16,422
Increase (decrease) of interest receivable on mortgage loans	9,576	6,329	668
Deductions
Amounts received	(21,589)	(6,077)	(26,230)
Non-cash reductions	(213)		(1,827)
Balance at ending	$ 120,986	$ 83,541	$ 70,166