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Employee Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Retirement Plan    
Defined Benefit Plan Disclosure [Line Items]    
Interest cost $ 680 $ 628
Expected return on assets (1,461) (1,437)
Net loss amortization 151 520
Net periodic benefit cost (income) (630) (289)
Retirement Plan Acquired    
Defined Benefit Plan Disclosure [Line Items]    
Interest cost 26 24
Expected return on assets (59) (58)
Net loss amortization 0 3
Net periodic benefit cost (income) (33) (31)
Restoration Plan    
Defined Benefit Plan Disclosure [Line Items]    
Interest cost 139 121
Expected return on assets 0 0
Net loss amortization 55 118
Net periodic benefit cost (income) $ 194 $ 239