Benefit Plans - Accumulated Other Comprehensive loss (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Amounts within accumulated other comprehensive loss that had not yet been recognized as components of net periodic benefit cost
Net actuarial loss (gain)	$ 15,812	$ 36,357
Total, pretax effect	15,812	36,357
Tax impact	(4,218)	(9,698)
Ending balance in accumulated other comprehensive loss	11,594	26,659
Other Benefits
Amounts within accumulated other comprehensive loss that had not yet been recognized as components of net periodic benefit cost
Net actuarial loss (gain)	(8,405)	(3,094)	$ (1,068)
Total, pretax effect	(8,405)	(3,094)
Tax impact	2,242	825
Ending balance in accumulated other comprehensive loss	$ (6,163)	$ (2,269)