SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE - Mortgage Loans On Real Estate (Details) |
12 Months Ended |
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Dec. 31, 2017
USD ($)
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| Mortgage Loans on Real Estate [Line Items] | |
| Face Value | $ 5,000,000 |
| Carrying Amount of Mortgage | 1,500,000 |
| Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 5,000,000 |
| Billings, Dunn, and McKenzie Counties, North Dakota (Morlock Well) [Member] | First Mortgage [Member] | |
| Mortgage Loans on Real Estate [Line Items] | |
| Interest Rate | 10.00% |
| Monthly Payment Amount (2) | $ 33,333 |
| Face Value | 4,000,000 |
| Carrying Amount of Mortgage | 1,500,000 |
| Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 4,000,000 |
| Billings, Dunn, and McKenzie Counties, North Dakota (Morlock Well) [Member] | Second Mortgage [Member] | |
| Mortgage Loans on Real Estate [Line Items] | |
| Interest Rate | 13.00% |
| Monthly Payment Amount (2) | $ 10,833 |
| Face Value | 1,000,000 |
| Carrying Amount of Mortgage | 0 |
| Principal Amount of Loans Subject to Delinquent Principal or Interest | $ 1,000,000 |
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- Definition Mortgage Loans on Real Estate, Monthly Payment Amount1 No definition available.
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- Definition The carrying amount of the outstanding balance due under the mortgage loan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the contractual principal due at the origination of the mortgage loan (face amount). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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