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Related Party Transactions and Arrangements - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  |  |  | 0 Months Ended |  | 0 Months Ended
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May 07, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 Asset Management Fees | Dec. 31, 2013 Asset Management Fees | Sep. 30, 2014 Other Liabilities | Dec. 31, 2013 Other Liabilities | May 07, 2013 if pre-incentive fee Core FFO does not exceed hurdle rate | May 07, 2013 if pre-incentive fee Core FFO does not exceed hurdle rate Maximum | May 07, 2013 if pre-incentive fee Core FFO exceeds hurdle rate | May 07, 2013 if pre-incentive fee Core FFO exceeds hurdle rate Minimum
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly management fee as percentage of average real estate assets | 0.1875% |  |  |  |  |  |  |  |  |  |  |  |
Quarterly management fee payment rate as percentage of average real estate assets | 0.1875% |  |  |  |  |  |  |  |  |  |  |  |
Asset management fees paid |  | $ 445 | $ 0 | $ 938 | $ 82 |  |  |  |  |  |  |  |
Cumulative gross amount of equity capital, hurdle rate |  |  |  |  |  |  |  |  |  |  | 1.75% |  | 1.75%
Cumulative gross amount of equity capital, annual hurdle rate |  |  |  |  |  |  |  |  |  |  | 7.00% |  | 7.00%
Advisor incentive fee |  |  |  |  |  |  |  |  |  | 0.00% |  | 20.00% |
Incentive fees paid to advisor |  | 0 | 0 | 154 | 79 |  |  |  |  |  |  |  |
Asset management fees payable to advisor |  |  |  |  |  | 445 | 107 |  |  |  |  |  |
Percentage of gross revenues from the property |  |  |  | 4.00% |  |  |  |  |  |  |  |  |
Property management and leasing fees |  | 471 | 190 | 1,203 | 563 |  |  |  |  |  |  |  |
Property management and leasing fees payable |  |  |  |  |  |  |  | $ 175 | $ 83 |  |  |  |

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