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Acquisitions: Percentage Ownership (Details) | Nov. 14, 2014 | Jun. 04, 2014 | Oct. 24, 2013 | Sep. 17, 2013
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Cascade Mall |  |  |  |
Acquisition |  |  |  |
Ownership percentage at completion of acquisition (as a percent) |  | 100.00% |  |
Superstition Springs Land I |  |  |  |
Acquisition |  |  |  |
Ownership percentage at completion of acquisition (as a percent) |  |  | 100.00% |
Fair value of existing ownership interest (as a percent) |  |  | 66.70% |
Camelback Colonnade |  |  |  |
Acquisition |  |  |  |
Ownership percentage at completion of acquisition (as a percent) |  |  |  | 100.00%
Fair value of existing ownership interest (as a percent) |  |  |  | 73.20%
PPR Queens Portfolio |  |  |  |
Acquisition |  |  |  |
Ownership percentage at completion of acquisition (as a percent) | 100.00% |  |  |
Fair value of existing ownership interest (as a percent) | 51.00% |  |  |

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