Employee Benefit Plans - Components of net periodic benefit cost (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss	$ 22,500	$ 2,900	$ 2,921		$ 4,660
Retirement Income Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost			972	$ 988	1,645
Expected return on plan assets				(1,509)	(1,581)
Amortization of net losses			1,010	808	986
Pension settlement loss			2,921		4,660
Net periodic benefit cost			$ 4,903	$ 287	$ 5,710