Pension and Other Post-Retirement Benefits - Components of Pension Expense and Other Postretirement Benefit Expense (Details) - Defined Benefit Plan - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plans Disclosure [Line Items]
Interest cost	$ 4,538	$ 2,382
Expected return on plan assets	(4,467)	(6,336)
Amortization of actuarial loss	2,882	2,128
Total net pension expense (income)	$ 2,953	$ (1,826)