Commitments and Contingencies - Schedule of Principal Debt Repayments (Detail) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
2022 (remaining)	$ 91,103
2023	809,081
2024	3,331,203
2025	1,926,052
2026	6,037,649
2027	4,165,039
Thereafter	1,205,394
Net book value	$ 17,565,521
Amortization percentage	1.00%
Securitized debt obligations excluded from contractual obligations	$ 2,900,000
Nonconsolidated securitized debt excluded from contractual obligations	1,500,000
Loan participations sold, net, Face Amount	226,511	$ 0
Secured Debt
Debt Instrument [Line Items]
2022 (remaining)	81,734
2023	570,343
2024	3,312,465
2025	1,275,006
2026	4,738,331
2027	3,221,663
Thereafter	732,894
Net book value	13,932,436
Asset-Specific Debt
Debt Instrument [Line Items]
2022 (remaining)	0
2023	0
2024	0
2025	632,308
2026	0
2027	238,376
Thereafter	0
Net book value	870,684
Term Loans
Debt Instrument [Line Items]
2022 (remaining)	9,369
2023	18,738
2024	18,738
2025	18,738
2026	1,299,318
2027	5,000
Thereafter	472,500
Net book value	1,842,401
Senior Secured Notes
Debt Instrument [Line Items]
2022 (remaining)	0
2023	0
2024	0
2025	0
2026	0
2027	400,000
Thereafter	0
Net book value	400,000
Convertible Notes
Debt Instrument [Line Items]
2022 (remaining)	0
2023	220,000
2024	0
2025	0
2026	0
2027	300,000
Thereafter	0
Net book value	$ 520,000

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