Derivatives - Schedule of Effect of Derivative Financial Instruments on Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments Gain Loss [Line Items]
Realized/Unrealized Gain (Loss)	$ 67,780	$ (56,950)
Income From Investments in Real Estate Debt [Member]
Derivative Instruments Gain Loss [Line Items]
Foreign currency forward contract, realized (loss) gain	(4,478)	356
Interest rate swap, realized (loss)	(14,691)	(1,711)
Foreign currency forward contract, unrealized gain	15,326	2,229
Interest rate swap, unrealized gain (loss)	54,422	$ (57,824)
Other Income (Expense) [Member]
Derivative Instruments Gain Loss [Line Items]
Interest rate swap, unrealized gain (loss)	$ 17,201