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Organization - Narrative (Details) | 12 Months Ended
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Dec. 31, 2017 ft² joint_venture partially_owned_asset Properties Assets | Dec. 31, 2016 ft² joint_venture Properties Assets
Organization [Line Items] |  |
Number of retail properties | Properties |  | 71
Area of real estate property | 501,276 | 322,326
Number of joint ventures | joint_venture | 2 | 2
Retail [Member] |  |
Organization [Line Items] |  |
Number of retail properties | Properties | 71 |
Retail [Member] |  |
Organization [Line Items] |  |
Number of retail properties | partially_owned_asset | 2 |
Area of real estate property | 12,444,703 | 12,155,909
Occupied [Member] |  |
Organization [Line Items] |  |
Square footage occupied (percent) | 98.00% | 69.90%
Occupied [Member] | Retail [Member] |  |
Organization [Line Items] |  |
Square footage occupied (percent) | 94.20% | 93.00%
Corporate Joint Venture [Member] |  |
Organization [Line Items] |  |
Number of retail properties | joint_venture | 1 | 1
Area of real estate property | 2,976,403 | 2,977,303
Number of managed retail properties | Assets | 15 | 15

X
- Definition Number Of Joint Ventures + References No definition available. + Details
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- Definition Number of Managed Assets + References No definition available. + Details
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- Definition [Line Items] for Organization [Table] + References No definition available. + Details
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- Definition Real Estate Property, Square Footage Occupied, Percent + References No definition available. + Details
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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |