Employee Benefit Plans - Schedule of net benefit costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5,991	$ 7,796	$ 7,564
Interest cost	$ 4,610	$ 4,439	$ 5,115
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)
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)
Amortization of other actuarial losses (gains)	$ (628)	$ (2,363)	$ (1,189)
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)
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	5,264	4,334	5,498
Expected return on plan assets	(6,173)	(7,245)	(8,283)
Pension settlement	(771)	(1,768)	(896)
Amortization of prior service credits	(147)	(128)	(112)
Amortization of other actuarial losses (gains)	(313)	(62)	0
Net benefit (credit) cost	(2,140)	(4,869)	(3,793)
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	282	341	419
Interest cost	2,006	2,113	2,392
Expected return on plan assets	0	0	0
Pension settlement	0	0	0
Amortization of prior service credits	0	0	0
Amortization of other actuarial losses (gains)	(2,508)	0	(1,379)
Net benefit (credit) cost	$ (220)	$ 2,454	$ 1,432