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Summary of Significant Accounting Policies - Schedule of Carrying Amount and Fair Value (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Assets |  |  |  |  |
Cash and cash equivalents, Carrying Amount |  | $ 35,972 |  | $ 8,751 | $ 9,888
Restricted cash, Carrying Amount |  | 29,699 |  | 4,864 |
Derivative assets, Carrying Amount |  | 2,488 |  |  |
Cash and cash equivalents, Estimated Fair Value |  | 35,972 |  | 8,751 |
Restricted cash, Estimated Fair Value |  | 29,699 |  | 4,864 |
Derivative assets, Estimated Fair Value |  | 2,488 |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount |  | 2,705,336 |  | 945,686 |
Derivative liabilities, carrying Amount |  | 11,896 |  | 29,842 |
Derivative liabilities, Estimated Fair Value |  | 11,896 |  | 29,842 |
Unsecured Revolver |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount |  | 274,109 | [1] | 183,110 |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value |  | 274,109 |  | 184,802 |
Unsecured Term Loans |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount |  | 497,951 |  | 298,759 |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value |  | 497,951 |  | 300,000 |
Secured Credit Facilities |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount | [2] | 664,618 |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value |  | 668,352 |  |  |
Mortgages |  |  |  |  |
Liabilities |  |  |  |  |
Indebtedness, net of unamortized discount and deferred financing costs, Carrying Amount |  | 1,268,658 |  | 463,817 |
Indebtedness, net of unamortized discount and deferred financing costs, Estimated Fair Value |  | $ 1,282,495 |  | $ 479,929 |
[1] | The unsecured revolver total capacity is $500,000, of which $277,003 was outstanding as of December 31, 2021.
[2] | The secured credit facilities include the PNC secured credit facility (“PNC MCFA”) and Newmark secured credit facility (“Newmark MCFA”) assumed in the STAR Merger, of which $76,248 and $558,880 was outstanding as of December 31, 2021, respectively.

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