Pension and Other Postretirement Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Settlement loss recognized		$ (3,500)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,217	1,207	$ 1,114
Interest cost	27,027	16,539	14,230
Expected return on plan assets	(39,470)	(37,276)	(42,168)
Amortization of prior service credits	0	0	0
Recognized net actuarial loss	741	3,037	5,469
Settlement loss recognized	0	0	22
Net periodic benefit (credit) cost	(10,485)	(16,493)	(21,333)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	13,044	7,898	7,274
Expected return on plan assets	0	0	0
Amortization of prior service credits	(2,405)	(2,405)	(2,405)
Recognized net actuarial loss	0	3,515	6,516
Settlement loss recognized	0	0	0
Net periodic benefit (credit) cost	$ 10,639	$ 9,008	$ 11,385