Employee Benefit Plans - Net periodic benefit costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 373	$ 245
Interest cost	4,687	2,834
Recognized actuarial loss	$ 3,082	$ 2,211
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Expected return on plan assets	$ (5,686)	$ (7,405)
Prior service cost	65	64
Net periodic benefit cost	$ 2,521	$ (2,051)