Employee Benefit Plans - Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Components of Net Periodic Postretirement Benefit Cost
Service cost	$ 2,000	$ 2,000	$ 2,000
Interest cost	1,000	1,000	1,000
Amortization of prior service credit	(1,000)	(1,000)	(1,000)
Net periodic postretirement cost	2,000	2,000	2,000
Recognized curtailment gain	(1,000)	0	0
Total post retirement cost	1,000	2,000	2,000
Other Changes in Benefit Obligations Recognized in Other Comprehensive Income
Net gain	(15,000)	0	(2,000)
Prior service credit	(1,000)	0	0
Amortization of prior service credit	1,000	1,000	1,000
Total recognized in other comprehensive income	(15,000)	1,000	(1,000)
Total recognized in net periodic benefit cost (income) and other comprehensive income	$ (14,000)	$ 3,000	$ 1,000