Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property, by the lessor or lessee, respectively. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee.

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This item represents the deferred charge for an incentive or inducement granted by a lessor to a lessee, in order to motivate the lessee to enter the lease agreement, which incentive or inducement is to be recognized as a reduction of rental revenue over the lease term.

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This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

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REAL ESTATE HELD FOR INVESTMENT - Operating Leases, Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Operating Leased Assets [Line Items]
Recognition of deferred revenue	$ (191)	$ 158
Deferred rent receivables	2,800		$ 3,000
Unamortized lease incentives	200		200
Other liabilities, at fair value
Operating Leased Assets [Line Items]
Security deposit liability	$ 900		$ 1,100
Maximum
Operating Leased Assets [Line Items]
Remaining terms	9 years 3 months 18 days
Weighted Average
Operating Leased Assets [Line Items]
Remaining terms	3 years 6 months