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Equity - Schedule of Distributions On Common Stock (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Equity [Abstract] |  |  |
Ordinary Income | 30.65818% | 62.2954% | 95.66078%
Return of Capital | 69.34182% | 37.34781% | 4.33922%
Long-term Capital Gain | 0.00% | 0.35679% | 0.00%

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- Definition Ordinary income as percentage of distributions. + References No definition available. + Details
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- Definition Percentage of long term capital gain. + References No definition available. + Details
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- Definition Percentage of return of capital. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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