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SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Summary (Details) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) item property | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Mortgage loans on real estate |  |  |  |
Number of properties | property | 22 |  |  |
Number of beds/units | item | 2,892 |  |  |
Balloon Amount | $ 228,090 |  |  |
Current Monthly Debt Service | 2,084 |  |  |
Face amount of originated mortgages | 259,595 |  |  |
Carrying Amount of Mortgages | 254,099 | $ 242,939 | $ 223,907 | $ 229,801
Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 0 |  |  |
Michigan | Mortgage Loans on Real Estate Maturing in 2043 |  |  |  |
Mortgage loans on real estate |  |  |  |
Number of properties | property | 15 |  |  |
Number of beds/units | item | 2,029 |  |  |
Interest rate (as a percent) | 9.92% |  |  |
Balloon Amount | $ 161,966 |  |  |
Current Monthly Debt Service | 1,535 |  |  |
Face amount of originated mortgages | 188,966 |  |  |
Carrying Amount of Mortgages | $ 184,265 |  |  |
Michigan | Mortgage Loans on Real Estate Maturing in 2045 | Property with 501 Beds/Units |  |  |  |
Mortgage loans on real estate |  |  |  |
Number of properties | property | 4 |  |  |
Number of beds/units | item | 501 |  |  |
Interest rate (as a percent) | 9.24% |  |  |
Balloon Amount | $ 32,286 |  |  |
Current Monthly Debt Service | 278 |  |  |
Face amount of originated mortgages | 36,116 |  |  |
Carrying Amount of Mortgages | $ 35,715 |  |  |
Michigan | Mortgage Loans on Real Estate Maturing in 2045 | Property with 157 Beds/Units |  |  |  |
Mortgage loans on real estate |  |  |  |
Number of properties | property | 1 |  |  |
Number of beds/units | item | 157 |  |  |
Interest rate (as a percent) | 9.41% |  |  |
Balloon Amount | $ 14,325 |  |  |
Current Monthly Debt Service | 117 |  |  |
Face amount of originated mortgages | 15,000 |  |  |
Carrying Amount of Mortgages | $ 14,801 |  |  |
Michigan | Mortgage Loans On Real Estate Maturing In 2020 |  |  |  |
Mortgage loans on real estate |  |  |  |
Number of properties | property | 2 |  |  |
Number of beds/units | item | 205 |  |  |
Interest rate (as a percent) | 9.41% |  |  |
Balloon Amount | $ 19,513 |  |  |
Current Monthly Debt Service | 154 |  |  |
Face amount of originated mortgages | 19,513 |  |  |
Carrying Amount of Mortgages | 19,318 |  |  |
Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 0 |  |  |
Mortgage Loans |  |  |  |
Mortgage loans on real estate |  |  |  |
Loan Term | 30 years |  |  |
Mortgage Loans | Minimum |  |  |  |
Mortgage loans on real estate |  |  |  |
Interest rate (as a percent) | 9.20% |  |  |
Mortgage Loans | Maximum |  |  |  |
Mortgage loans on real estate |  |  |  |
Interest rate (as a percent) | 9.90% |  |  |

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