Pension and Other Post-Retirement Benefit Plans - Unrecognized Net Periodic Benefit Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	$ 0	$ 0
Unrecognized net actuarial loss	144,268	90,675
Accumulated other comprehensive loss	144,268	90,675
Net periodic benefit expense	19,000
Post-retirement Healthcare Plans
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	0	0
Unrecognized net actuarial loss	76	418
Accumulated other comprehensive loss	76	$ 418
Net periodic benefit expense	$ 0