Preferred Equity and Mezzanine Loan Investments - (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Variable Interest Entity [Line Items]
Total	$ 165,555	$ 138,920
Texas
Variable Interest Entity [Line Items]
Concentration risk, percentage	16.60%	24.30%
Georgia
Variable Interest Entity [Line Items]
Concentration risk, percentage	15.30%	3.40%
Florida
Variable Interest Entity [Line Items]
Concentration risk, percentage	11.30%	3.90%
South Carolina
Variable Interest Entity [Line Items]
Concentration risk, percentage	9.50%	7.00%
Virginia
Variable Interest Entity [Line Items]
Concentration risk, percentage	9.10%	10.80%
Alabama
Variable Interest Entity [Line Items]
Concentration risk, percentage	8.60%	7.10%
Tennessee
Variable Interest Entity [Line Items]
Concentration risk, percentage	6.80%	0.00%
Missouri
Variable Interest Entity [Line Items]
Concentration risk, percentage	5.10%	0.00%
Preferred equity and mezzanine loan investments
Variable Interest Entity [Line Items]
Investment amount	$ 166,789	$ 140,560
Deferred loan fees, net	(1,234)	(1,640)
Total	$ 165,555	$ 138,920
Number of delinquent loans \| loan	0	0

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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+ References

No definition available.

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Net carrying amount of the assets and liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), when the reporting entity is not the VIE's primary beneficiary.

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No definition available.

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Carrying amount of the liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

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