Employee Benefit Plans - Schedule of net benefit costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Pension settlement	$ (201)	$ (376)	$ (615)	$ (1,364)
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1,486	1,099	3,673	3,234
Expected return on plan assets	(1,557)	(1,812)	(4,422)	(5,460)
Pension settlement	(201)	(376)	(615)	(1,364)
Amortization of prior service credits	(38)	(52)	(111)	(139)
Amortization of other actuarial losses (gains)	(101)		(134)	0
Net benefit (credit) cost	(411)	(1,141)	(1,609)	(3,729)
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	71	86	212	256
Interest cost	501	529	1,504	1,585
Amortization of other actuarial losses (gains)	(627)		(1,881)	0
Net benefit (credit) cost	$ (55)	$ 615	$ (165)	$ 1,841