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DERIVATIVES - Derivative Financial Instruments, Average Remaining Maturity and the Weighted-Average Interest Rates being Paid and Received (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Derivative [Line Items]    
Derivative, Notional Amount $ 17,683,691 $ 11,875,690
Average Maturity (years) 2 years  
Fair Value $ (7)  
Asset conversion swaps | Derivative Financial Instruments Receive Fixed Pay Variable    
Derivative [Line Items]    
Derivative, Notional Amount $ 2,430,587  
Average Maturity (years) 5 years 8 months 12 days  
Fair Value $ 77,186  
Asset conversion swaps | Derivative Financial Instruments Receive Variable Pay Fixed    
Derivative [Line Items]    
Derivative, Notional Amount $ 2,430,587  
Average Maturity (years) 5 years 8 months 12 days  
Fair Value $ (77,193)  
Foreign Exchange [Member] | Derivative Financial Instruments Receive Fixed Pay Variable    
Derivative [Line Items]    
Derivative, Notional Amount $ 6,423,085  
Average Maturity (years) 7 months 6 days  
Fair Value $ 15,208  
Foreign Exchange [Member] | Derivative Financial Instruments Receive Variable Pay Fixed    
Derivative [Line Items]    
Derivative, Notional Amount $ 6,399,432  
Average Maturity (years) 7 months 6 days  
Fair Value $ (15,208)