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Related Party Transactions and Arrangements - Additional Information (Detail) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
May. 07, 2013 Property | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Dec. 31, 2014 USD ($)
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% |  |  |  |  |
Base management fees earned |  | $ 1,046 | $ 347 | $ 2,047 | $ 493 |
Number of properties excluded from computation of base management fee | Property | 8 |  |  |  |  |
Incentive fees incurred to advisor |  | 214 | 154 | $ 425 | 154 |
Percentage of gross revenues from the property |  |  |  | 4.00% |  |
Property management and leasing fees |  | 764 | $ 411 | $ 1,519 | $ 732 |
Incentive Fees |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Incentive fees payable to advisor |  | 1,260 |  | 1,260 |  | $ 644
Other Liabilities |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Property management and leasing fees payable |  | $ 262 |  | $ 262 |  | $ 205
if pre-incentive fee Core FFO does not exceed hurdle rate |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Advisor incentive fee | 0.00% |  |  |  |  |
if pre-incentive fee Core FFO does not exceed hurdle rate | Maximum |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Cumulative gross amount of equity capital, hurdle rate | 1.75% |  |  |  |  |
Cumulative gross amount of equity capital, annual hurdle rate | 7.00% |  |  |  |  |
if pre-incentive fee Core FFO exceeds hurdle rate |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Advisor incentive fee | 20.00% |  |  |  |  |
if pre-incentive fee Core FFO exceeds hurdle rate | Minimum |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Cumulative gross amount of equity capital, hurdle rate | 1.75% |  |  |  |  |
Cumulative gross amount of equity capital, annual hurdle rate | 7.00% |  |  |  |  |

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