Pension and Other Post-Retirement Benefit Obligations - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 598	$ 913
Interest cost	$ 1,166	$ 965
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income Expense	Other Nonoperating Income Expense
Expected return on plan assets	$ (1,357)	$ (1,478)
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
Amortization of unrecognized items	$ 128	$ 62
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
Net benefit costs (gains)	$ 535	$ 462
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	29	49
Interest cost	$ 123	$ 105
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income Expense	Other Nonoperating Income Expense
Expected return on plan assets	$ 0	$ 0
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
Amortization of unrecognized items	$ (241)	$ (178)
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
Net benefit costs (gains)	$ (89)	$ (24)