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Non-controlling Interests (Tables) | 12 Months Ended
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Dec. 31, 2016
Non-controlling Interest [Line Items] |
Non-controlling Interests [Table Text Block] | The following table summarizes the effect of changes in our ownership interest in subsidiaries on the equity attributable to common shareholders for each of the years ended December 31:
(in thousands) | 2016 |  | 2015 |  | 2014
Net income attributable to common shareholders | $ | 819,823 |  |  | $ | 249,315 |  |  | $ | 292,089 |
Transfers from non-controlling interests: |  |  |  |  |
Increase in equity for conversion of operating partnership units | 290 |  |  | 86 |  |  | 52 |
Decrease in additional paid-in-capital for purchase of remaining non-controlling ownership interests in two consolidated joint ventures (1) | — |  |  | (9,480 | ) |  | — |
Change in common equity and net transfers from non-controlling interests | $ | 820,113 |  |  | $ | 239,921 |  |  | $ | 292,141 |
(1) | Refer to Note 7, "Acquisitions, Dispositions, Impairment, and Discontinued Operations," for further discussion of acquisitions.

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- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
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