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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended | 96 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2007 | Dec. 31, 2012
Accounting Policies [Abstract] |  |  |  |  |
Maturity of liquid investments | three months or less |  |  |  |
Accumulated amortization deferred financing costs | $ 20,332 | $ 17,173 |  |  |
Allowance for doubtful accounts receivable | 1,515 | 1,695 |  |  |
Deferred rent receivable allowance amount | $ 2,669 | 1,888 |  |  |
Minimum percentage of taxable income to be distributed | 90.00% |  |  |  |
Operating Partnership's minimum ownership interest in the limited partnerships | 99.00% |  |  |  |
Statement [Line Items] |  |  |  |  |
Common Stock | $ 1,111 | 1,106 |  |  |
Additional Paid-in-Capital | 1,756,415 | 1,751,059 |  |  |
Accumulated Distributions in Excess of Net Income | (674,759) | (689,348) |  |  |
Restatement Adjustment |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Stock Repurchased During Period, Shares |  |  |  | 4,324,114 |
Common Stock |  | 43 |  |  |
Additional Paid-in-Capital |  | 121,277 |  |  |
Accumulated Distributions in Excess of Net Income |  | 18,698 |  |  |
Previously Reported |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Common Stock |  | 1,149 | $ 1,143 |  | $ 1,031
Additional Paid-in-Capital |  | 1,872,336 | 1,938,886 |  | 1,906,490
Accumulated Distributions in Excess of Net Income |  | (670,650) | (669,896) |  | $ (657,567)
In-Place Leases and Tenant Relationships |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization expense of deferred leasing intangibles | 6,326 | 6,239 | 5,598 |  |
Above and Below Market Leases |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization expense of deferred leasing intangibles | $ 462 | $ 925 | $ 572 |  |

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