Loans Receivable - Internal Ratings for Loans Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 190,579	$ 62,998
Percentage of Loan Portfolio	100.00%
Performing Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 190,579
Watch List Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	0
Workout DFLs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	0
Real Estate Secured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 161,964	42,037
Percentage of Loan Portfolio	85.00%
Real Estate Secured | Performing Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 161,964
Real Estate Secured | Watch List Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	0
Real Estate Secured | Workout DFLs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	0
Other Secured
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 28,615	$ 20,961
Percentage of Loan Portfolio	15.00%
Other Secured | Performing Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 28,615
Other Secured | Watch List Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	0
Other Secured | Workout DFLs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable, net	$ 0