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Leases - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) office_lease ground_lease | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) office_lease ground_lease | Sep. 30, 2018 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |
Tenant reimbursements period related to certain capital expenditure minimum |  |  | 5 years |
Tenant reimbursements period related to certain capital expenditure maximum |  |  | 15 years |
Uncollectable operating lease receivables | $ | $ (188) | $ 487 | $ 1,504 | $ 3,273
Number of ground leases | ground_lease | 8 |  | 8 |
Number of office leases | office_lease | 1 |  | 1 |
Weighted-average remaining term of operating leases | 39 years 8 months 12 days |  | 39 years 8 months 12 days |
Weighted-average discount rate of operating leases (as a percent) | 8.00% |  | 8.00% |
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease renewal term | 5 years |  | 5 years |
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease renewal term | 10 years |  | 10 years |

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- Definition Lessee Leasing Arrangements, Number of Office Building Leases + References No definition available. + Details
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- Definition Tenant Reimbursements Period Related to Certain Capital Expenditure Maximum, in Years + References No definition available. + Details
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- Definition Tenant Reimbursements Period Related to Certain Capital Expenditure Minimum, in Years + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: 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=77888399&loc=SL77918982-209971 + 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=77888399&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=77888426&loc=SL77918686-209980 + Details
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