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Mortgage And Other Notes Receivable (Schedule of Bickford Construction Loans) (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Loans and Leases Receivable, Commitments, Fixed Rates | $ 256,450,000 |
Loans and Leases Receivable, Net Amount | (287,282,000) | $ (340,143,000)
Bickford Note Investment [Member] |  |
Loans and Leases Receivable, Commitments, Fixed Rates | 42,900,000 |
Loans and Leases Receivable, Net Amount | $ (29,458,000) |
January 2018 [Member] | Bickford Note Investment [Member] |  |
Note Receivable Interest Rate | 9.00% |
Loan Term | 5 years |
Loans and Leases Receivable, Commitments, Fixed Rates | $ 14,000,000 |
Loans and Leases Receivable, Net Amount | $ (13,687,000) |
July 2018 [Member] | Bickford Note Investment [Member] |  |
Note Receivable Interest Rate | 9.00% |
Loan Term | 5 years |
Loans and Leases Receivable, Commitments, Fixed Rates | $ 14,700,000 |
Loans and Leases Receivable, Net Amount | $ (14,218,000) |
June 2020 | Bickford Note Investment [Member] |  |
Note Receivable Interest Rate | 9.00% |
Loan Term | 5 years |
Loans and Leases Receivable, Commitments, Fixed Rates | $ 14,200,000 |
Loans and Leases Receivable, Net Amount | $ (1,553,000) |

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- Definition Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at stated interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=108315417&loc=d3e61044-112788 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108315417&loc=d3e61082-112788 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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