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Derivative Financial Instruments - Additional Information (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Derivative [Line Items]    
Liability derivatives $ 18,430,000 $ 18,161,000
Interest Rate Swap Agreements    
Derivative [Line Items]    
Net liability positions, aggregate fair value 10,100,000 17,200,000
Liability derivatives 17,029,000 17,409,000
Visa Class B Restricted Securities    
Derivative [Line Items]    
Liability derivatives $ 0 $ 0