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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2018
Accounting Policies [Abstract] |
Non-cash Investing and Financing Activities | Non-cash investing and financing activities are summarized as follows (in millions):
| Six Months |
| Ended June 30, |
| 2018 |  |  | 2017 |
Accounts payable related to construction in progress | $ | 16.7 |  |  | $ | 15.7 |
Receivable and reduction of real estate assets, net - related to hurricane |  | 7.8 |  |  |  | — |
Assumption of building due to ground lease termination |  | 2.2 |  |  | — |
Dividends declared |  | 78.7 |  |  |  | 76.7 |
Conversion of Operating Partnership Units |  | 0.9 |  |  | — |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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