Employee Benefit Plans - Schedule of net benefit credit (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected final contribution to the plan			$ 6,000
Maximum
Defined Benefit Plan Disclosure [Line Items]
Expected final contribution to the plan			10,000
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,533	$ 1,094	3,067	$ 2,187
Expected return on plan assets	(1,518)	(1,433)	$ (3,036)	(2,865)
Pension settlement	$ 0	$ (414)		$ (414)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Amortization of prior service credits	$ (36)	$ (177)	$ (73)	$ (73)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Amortization of other actuarial losses (gains)	$ (195)	$ 0	$ (390)
Net benefit credit	(216)	(930)	(432)	$ (1,165)
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	57	70	115	141
Interest cost	673	502	1,347	1,003
Amortization of other actuarial losses (gains)	$ (2,423)	$ (627)	$ (4,845)	$ (1,254)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)	Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Net benefit credit	$ (1,693)	$ (55)	$ (3,383)	$ (110)