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Summary of Significant Accounting Policies - Schedule of Carrying Amount and Fair Value (Detail) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019 | Jun. 30, 2019
--- | --- | --- | ---
Assets |  |  |  |  |
Cash and cash equivalents, Carrying Amount | $ 11,652 |  | $ 9,888 |  | $ 11,060
Restricted cash, Carrying Amount | 6,509 |  | 4,545 |  |
Derivative assets, Carrying Amount |  |  | 953 |  |
Cash and cash equivalents, Estimated Fair Value | 11,652 |  | 9,888 |  |
Restricted cash, Estimated Fair Value | 6,509 |  | 4,545 |  |
Derivative assets, Estimated Fair Value |  |  | 953 |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount | 1,008,911 |  | 985,572 |  |
Derivative liabilities, carrying Amount | 34,614 |  | 7,769 |  |
Derivative liabilities, Estimated Fair Value | 34,614 |  | 7,769 |  |
Unsecured Credit Facility |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount | 210,765 | [1] | 183,966 | [2] |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value | 212,802 |  | 186,302 |  |
Term Loan |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount | 298,588 |  | 298,418 |  |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value | 300,000 |  | 300,000 |  |
Mortgages |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount | 499,558 |  | 503,188 |  |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value | $ 520,898 |  | $ 505,510 |  |
[1] | The unsecured credit facility total capacity is $350,000, of which $212,802 was outstanding as of June 30, 2020.
[2] | The unsecured credit facility total capacity was $350,000, of which $186,302 was outstanding as of December 31, 2019.

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