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Mortgage Notes Payable and Credit Facility - Interest Rate Cap Agreement (Detail) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |
Aggregate Cost | $ 1,109 |
Aggregate Notional Amount | 133,760 | $ 134,678
Aggregate Fair Value | $ 143 | 622
Minimum | LIBOR |  |
Debt Instrument [Line Items] |  |
Interest rate (as percent) | 2.50% |
Maximum | LIBOR |  |
Debt Instrument [Line Items] |  |
Interest rate (as percent) | 3.00% |
Interest rate swaps | Counterparty |  |
Debt Instrument [Line Items] |  |
Aggregate Notional Amount | $ 46,057 | 24,732
Aggregate Fair Value | 0 | 451
Aggregate Fair Value Liability | $ (1,172) | $ (396)

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