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Organization of the Company and Basis of Presentation - Additional Information (Detail) |  |  |  | 12 Months Ended |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Cumulative Series E Eighteen Point Seventy Five Percent Non-Voting Preferred Stock [Member] | Dec. 30, 2013 Cumulative Series E Eighteen Point Seventy Five Percent Non-Voting Preferred Stock [Member] | Dec. 31, 2012 Cumulative Series E Eighteen Point Seventy Five Percent Non-Voting Preferred Stock [Member] | Dec. 31, 2013 Cumulative Series D Six Percent Non-Qualified Preferred Stock [Member] | Dec. 30, 2013 Cumulative Series D Six Percent Non-Qualified Preferred Stock [Member] | Dec. 31, 2012 Cumulative Series D Six Percent Non-Qualified Preferred Stock [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized | 9,945,164 | 9,945,539 |  | 250 | 250 | 0 | 125 | 125 | 0
Preferred Stock, Dividend Rate, Percentage |  |  |  | 18.75% |  |  | 6.00% |  |
Non-Controlling Interests - Common OP Units | 7,667,723 | 7,456,320 | 8,206,134 |  |  |  |  |  |

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