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Intangible Assets and Liabilities - Weighted Average Amortization Period for Intangible Assets and Liabilities (Details) - Weighted Average | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average amortization period, below-market leases | 13 years 4 months 24 days | 13 years 2 months 12 days
In-place leases |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average amortization period, intangible assets | 11 years 1 month 6 days | 10 years 6 months
Above-market leases |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average amortization period, intangible assets | 12 years 7 months 6 days | 15 years 3 months 18 days
Assembled workforce |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average amortization period, intangible assets | 2 years | 3 years

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- Definition Below Market Lease, Remaining Amortization Period + 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 Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 + Details
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- Details
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- Details
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