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Note 3 - Operating Property Activities (Tables) | 6 Months Ended
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Jun. 30, 2018
Notes Tables |
Disposal Groups, Including Discontinued Operations [Table Text Block] |
|  | Six Months Ended June 30 , |
|  | 2018 |  |  | 2017 |
Aggregate sales price |  | $ | 833.1 |  |  | $ | 157.3 |
Gain on sale of operating properties/change in control of interests |  | $ | 152.2 |  |  | $ | 21.6 |
Impairment charges |  | $ | 9.9 |  |  | $ | 2.4 |
Number of operating properties sold/deconsolidated |  |  | 35 |  |  |  | 11 |
Number of out-parcels sold |  |  | 2 |  |  |  | 5 |

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