Real Estate Loans Receivable - Summary Of Real Estate Loans Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less allowance for losses on loans receivable	$ (68,372)	$ (68,372)
Totals	368,994	330,339
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans receivable	332,770	317,443
Other real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans receivable	$ 104,596	$ 81,268

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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