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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2016
Accounting Policies [Abstract] |
Non-cash Investing and Financing Activities | Non-cash investing and financing activities are summarized as follows (in millions):
| For the Year Ended December 31, |
| 2016 |  |  | 2015 |  |  | 2014 |
Accounts payable related to construction in progress | $ | 13.3 |  |  | $ | 31.6 |  |  | $ | 25.7 |
Dividends declared |  | 75.2 |  |  |  | 68.6 |  |  |  | 61.5 |
Mortgages assumed from acquisitions |  | — |  |  |  | 33.7 |  |  |  | 293.3 |
Issuance of Operating Partnership Units ("OP Units") |  | — |  |  |  | — |  |  |  | 18.3 |
Redemption of OP Units |  | — |  |  |  | 18.3 |  |  |  | — |
Elimination of a previously held equity interest (Note 3) |  | — |  |  |  | 1.4 |  |  |  | 2.5 |
Preferred equity interest and mezzanine loan applied to purchase price of acquired properties |  | — |  |  |  | — |  |  |  | 51.8 |
Reclassification adjustment of foreign currency translation (Note 11) |  | — |  |  |  | — |  |  |  | 21.8 |
Write-off of preferred share original issuance costs |  | — |  |  |  | — |  |  |  | 1.9 |
Estimated Useful Lives of Assets | Depreciation and amortization is recorded on a straight-line basis over the estimated useful lives of the assets as follows:
Buildings | Useful lives, 20 to 31.5 years
Building improvements and fixtures | Useful lives, ranging from 5 to 20 years
Tenant improvements | Shorter of economic life or lease terms
Schedule of Fee and Other Income from Continuing Operations | Fee and other income was composed of the following (in thousands):
| For the Year Ended December 31, |
| 2016 |  |  | 2015 |  |  | 2014 |
Management and other fee income | $ | 36,298 |  |  | $ | 32,971 |  |  | $ | 31,907 |
Ancillary and other property income |  | 18,678 |  |  |  | 19,038 |  |  |  | 24,288 |
Lease termination fees |  | 3,512 |  |  |  | 2,774 |  |  |  | 4,085 |
Other |  | 80 |  |  |  | 565 |  |  |  | 621 |
Total fee and other income | $ | 58,568 |  |  | $ | 55,348 |  |  | $ | 60,901 |

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