Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entities and Securitizations - Summary of the Outstanding Collateral and Certificate Balances for Securitization Trusts (Detail)

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Variable Interest Entities and Securitizations - Summary of the Outstanding Collateral and Certificate Balances for Securitization Trusts (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Schedule Of Collateral And Certificate Balances For Securitization Trusts [Line Items]      
Total certificate balances $ 22,077,907 $ 21,788,946 $ 20,100,419
Unconsolidated Securitization Trusts      
Schedule Of Collateral And Certificate Balances For Securitization Trusts [Line Items]      
Total certificate balances 1,056,341 1,085,340  
Unconsolidated Securitization Trusts | Asset Pledged as Collateral      
Schedule Of Collateral And Certificate Balances For Securitization Trusts [Line Items]      
Total certificate balances $ 1,056,341 $ 1,085,340