Real Estate and Intangible Assets - Weighted Average Amortization Period for Intangible Assets and Liabilities (Details) |
3 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
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| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted average amortization period | 14 years 6 months 11 days | 11 years 1 month 6 days |
| In-place leases | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted average amortization period | 13 years 15 days | 9 years 9 months 18 days |
| Leasing costs | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted average amortization period | 13 years 15 days | 9 years 9 months 18 days |
| Customer relationships | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted average amortization period | 17 years 10 months 24 days | 14 years 9 months 18 days |
| Above market leases | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted average amortization period | 10 years 4 days | 9 years 9 months 18 days |
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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 Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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