Employee Benefit Plans - Pension Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net periodic benefit cost
Employer contributions			$ 1,900	$ 2,400
Pension [Member]
Net periodic benefit cost
Service cost	$ 15	$ 19	45	57
Interest cost	$ 486	$ 425	$ 1,458	$ 1,275
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Income (Expense), Nonoperating, Net	Interest Income (Expense), Nonoperating, Net	Interest Income (Expense), Nonoperating, Net	Interest Income (Expense), Nonoperating, Net
Expected return on plan assets	$ (724)	$ (606)	$ (2,172)	$ (1,818)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Amortization of prior service cost	$ 53	$ 45	$ 159	$ 135
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Amortization of net loss	$ (646)	$ (840)	$ (1,938)	$ (2,520)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Net periodic benefit cost	$ 476	$ 723	$ 1,428	$ 2,169