Annual report pursuant to Section 13 and 15(d)

Mortgage Loans On Real Estate (Schedule Of Mortgage Loans On Real Estate) (Details)

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Mortgage Loans On Real Estate (Schedule Of Mortgage Loans On Real Estate) (Details) - Borrower A [Member] - Land [Member]
12 Months Ended
Dec. 31, 2019
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]  
Interest Accrual Rate 5.85%
Interest Payment Rate 5.85%
Final Maturity Date Jul. 21, 2019
Periodic Payment Terms P&I