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Postretirement Benefits - Schedule of Information Regarding the SERP (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Retirement Benefits [Abstract]      
Premiums paid for insurance coverage $ 0 $ 443  
Total investments:      
COLI 57,632   $ 57,210
Exchange traded funds 96,573   98,314
Total investments of SERP $ 154,205   $ 155,524