Employee Benefit Plans - reconciliation of accumulated liability projected benefit obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	$ 32,094	$ 27,402
Defined Benefit Plan, Benefit Obligation, established through acquisition	0	4,889
Change in actuarial loss	(5,850)	(732)
Benefit expense	1,854	1,735
Defined Benefit Plan, Benefit Obligation, Benefits Paid	1,567	1,200
Balance at end of year	$ 26,531	$ 32,094