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Benefit Plans - Components of Net Periodic Pension Income for Qualified and Non-Qualified Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Accrued expenses and other liabilities    
Pension      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost $ 5,373 $ 3,510 $ 4,941
Expected return on plan assets (20,858) (16,364) (17,200)
Amortization of net loss (gain) 1,000 1,538 1,003
Amortization of prior service cost 135 135 135
Net periodic benefit (income) cost (14,350) $ (11,181) $ (11,121)
OPEB      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost 174    
Expected return on plan assets 0    
Amortization of net loss (gain) (95)    
Amortization of prior service cost 0    
Net periodic benefit (income) cost $ 79