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Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Components of accumulated other comprehensive loss $ 247,032 $ 256,009 $ 272,114 $ 266,366 $ 257,612 $ 257,972
Unrealized (Losses) Gains on Securities            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Components of accumulated other comprehensive loss (37,613)   (3,474) 742    
Pension Liability            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Components of accumulated other comprehensive loss (5,913)   (6,071) (9,795)    
Accumulated Other Comprehensive Loss            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Components of accumulated other comprehensive loss $ (43,526) $ (30,904) $ (9,545) $ (9,053) $ (11,473) $ (5,638)