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Employee Benefit Plans - Summary of the Activity in the SERP's Projected Benefit Obligation (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Benefit obligation:      
Beginning balance $ 87,127,000 $ 85,433,000  
Interest cost 4,280,000 4,314,000  
Benefits paid (84,576,000) (3,485,000)  
Actuarial (gain) loss (6,047,000) 865,000  
Ending balance 784,000 87,127,000 $ 85,433,000
SERP      
Benefit obligation:      
Beginning balance 9,501,000 9,579,000  
Service cost 0 0 0
Interest cost 450,000 472,000 318,000
Benefits paid (382,000) (400,000) (348,000)
Actuarial (gain) loss (757,000) 150,000  
Ending balance $ 8,812,000 $ 9,501,000 $ 9,579,000