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Real Estate and Intangible Assets - Intangible Assets and Liabilities (Details) | 9 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 9 years | 12 years 10 months 24 days
In-Place Leases [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 7 years 10 months 24 days | 11 years 6 months
Leasing Costs [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 7 years 10 months 24 days | 11 years 6 months
Customer Relationships [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 12 years 2 months 12 days | 16 years 1 month 6 days
Above Market Leases [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 0 years | 17 years 2 months 12 days
Below Market Leases [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets & Liabilities, Amortization Period | 7 years 10 months 24 days | 13 years 6 months

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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 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Details
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