FAIR VALUE (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 14, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized loss on derivatives		$ 39,000	$ 0	$ 330,000	$ 0
Provision for (recovery of) credit losses, net		2,598,000	0	1,463,000	(175,000)
Recovery of credit losses		(1,100,000)	$ (200,000)	(1,100,000)	$ (200,000)
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative		0		0
Mortgage Receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans, net				11,700,000		$ 23,200,000
Allowance for loan and lease losses, real estate		$ 15,300,000		$ 15,300,000		$ 13,100,000
Percentage of valuation allowance on loans receivable		57.70%		57.70%		37.10%
Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Provision for (recovery of) credit losses, net	$ 2,600,000
Subsequent Event | Mezzanine Loan | Mortgage Receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans, net	$ 12,300,000