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Derivatives and Hedging Activities - Summary of Fair Value of Derivative Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value $ 266,599 $ 281,329
Derivative Liabilities, Fair Value 146,429 136,452
Interest Rate Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value 238,691 274,973
Derivative Liabilities, Fair Value 118,641 130,158
Commodity Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value 27,908 6,356
Derivative Liabilities, Fair Value 27,788 6,294
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value 114,918 126,423
Derivative Liabilities, Fair Value 118,641 130,122
Derivatives not Designated as Hedging Instruments [Member] | Commodity Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value 27,908 6,356
Derivative Liabilities, Fair Value 27,788 6,294
Derivatives Designated as Hedging Instruments [Member] | Interest Rate Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets, Fair Value $ 123,773 148,550
Derivative Liabilities, Fair Value   $ 36