Loans Receivable, Net - Schedule Of Loan Receivable Portfolio Based On Floor Rate (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 21,761,684	$ 23,923,719
0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	10,343,219
0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	4,657,837
1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,904,939
2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,266,714
3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,588,975
Interest Rate Swaps
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notional amount	$ 229,900	$ 229,900
Weighted Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-average index rate floor	0.97%
Excluding 0.0% index rate floors, weighted-average index rate floor	1.57%
USD
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 14,621,307
USD | 0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	5,307,784
USD | 0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	4,256,122
USD | 1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,944,476
USD | 2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,724,694
USD | 3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,388,231
Non-USD
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	7,140,377
Non-USD | 0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	5,035,435
Non-USD | 0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	401,715
Non-USD | 1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	960,463
Non-USD | 2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	542,020
Non-USD | 3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 200,744