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Fair Value Disclosures - Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Interest Rate Swap    
Assets:    
Interest rate swaps $ 1,200  
Recurring    
Assets:    
SERP 1,984 $ 2,142
Recurring | Interest Rate Swap    
Assets:    
Interest rate swaps 1,234 1,998
Recurring | Level 1    
Assets:    
SERP 0 0
Recurring | Level 1 | Interest Rate Swap    
Assets:    
Interest rate swaps 0 0
Recurring | Level 2    
Assets:    
SERP 1,984 2,142
Recurring | Level 2 | Interest Rate Swap    
Assets:    
Interest rate swaps 1,234 1,998
Recurring | Level 3    
Assets:    
SERP 0 0
Recurring | Level 3 | Interest Rate Swap    
Assets:    
Interest rate swaps $ 0 $ 0