Accounts Payable and Accrued Expenses and Other Liabilities - Summary of Accounts Payable, Accrued Expenses and Other Liabilities (Parenthetical) (Detail) - Ground Leases and Corporate Office Lease [Member]	Jun. 30, 2019
Accrued Liabilities Current [Line Items]
Weighted average incremental borrowing rate	8.60%
Weighted average remaining maturity period	29 years