Loans Receivable, Net - Schedule Of Loan Receivable Portfolio Based On Floor Rate (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 19,217,768	$ 19,203,126
Fixed Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	161,794
0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	7,682,066
0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	4,215,030
1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,273,240
2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	3,211,537
3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 1,674,101
Weighted Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-average index rate floor	1.13%
Excluding 0.0% index rate floors, weighted-average index rate floor	1.74%
USD
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 11,697,375
USD | Fixed Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	161,794
USD | 0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,253,062
USD | 0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	3,831,152
USD | 1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,270,538
USD | 2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,840,351
USD | 3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,340,478
Non-USD
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	7,520,393
Non-USD | Fixed Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	0
Non-USD | 0.00% or no floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	5,429,004
Non-USD | 0.01% to 1.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	383,878
Non-USD | 1.01% to 2.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,002,702
Non-USD | 2.01% to 3.00% floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	371,186
Non-USD | 3.01% or more floor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 333,623