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Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership - Summary of Dividends/Distributions (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Class of Stock [Line Items] |  |  |  |  |
Total Common Stock Dividend / Unit Distribution |  | $ 59,014 | $ 47,263 |  | $ 38,862
Total Preferred Dividend / Distribution |  |  | 1,019 |  | 8,733
Common Stock / Operating Partnership Units |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Total Common Stock Dividend / Unit Distribution |  | $ 59,014 | 47,263 |  | 38,862
Series F Preferred Stock/Units |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Total Preferred Dividend / Distribution |  |  | 566 | [1] | 2,896
Series G Preferred Stock/Units |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Total Preferred Dividend / Distribution |  |  | $ 453 | [1] | 1,809
Series J Preferred Stock/Units |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Total Preferred Dividend / Distribution | [1] |  |  |  | 2,034
Series K Preferred Stock/Units |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Total Preferred Dividend / Distribution | [1] |  |  |  | $ 1,994
[1] | See the "Preferred Stock/Contributions" section for the redemptions and discussion of pro-rated dividends/distributions for all series of preferred stock/Units occurring during the years ended December 31, 2014 and 2013.

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