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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract] |  |  |  |  |
Weighted average remaining lease term | 30 years 9 months 18 days |  |  | 30 years 9 months 18 days |
Weighted average discount rate | 5.70% |  |  | 5.70% |
Rent expense | $ 0.4 |  | $ 0.4 | $ 1.3 | $ 1.3
Percentage of contractual base rents and monthly tenant reimbursements collected | 91.00% | 77.00% |  |  |
Lease rent deferred | $ 2.7 |  |  | 2.7 |
Lease rent waived |  |  |  | $ 0.9 |
Weighted average payback period of deferred rent |  |  |  | 10 months |

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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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