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Mortgage Notes Payable - Footnotes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Dec. 31, 2019
Mortgage loans payable on real estate |  |  |
Unamortized deferred finance costs |  | $ 13,403 | $ 16,042
Green Acres Commons |  |  |
Mortgage loans payable on real estate |  |  |
Effective interest rate |  | 2.87% | 4.40%
Chandler Freehold |  |  |
Mortgage loans payable on real estate |  |  |
Percentage of loan assumed by third party |  | 49.90% |
Fashion Outlets of Niagara Falls USA |  |  |
Mortgage loans payable on real estate |  |  |
Debt premiums |  | $ 77 | $ 773
Fashion Outlets of Niagara Falls USA | Forecast |  |  |
Mortgage loans payable on real estate |  |  |
Extension period | 3 years |  |
Green Acres Commons |  |  |
Mortgage loans payable on real estate |  |  |
Interest rate spread over basis |  | 2.15% |
Santa Monica Place |  |  |
Mortgage loans payable on real estate |  |  |
Interest rate spread over basis |  | 1.35% |
Effective interest rate |  | 1.75% | 3.34%
Santa Monica Place | Maximum | Cap |  |  |
Mortgage loans payable on real estate |  |  |
Interest rate spread over basis |  | 4.00% |

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