Pension Plans - Net Periodic Benefit Cost (Credit) (Details) - Pension Plan [Member] - Qualified Plan [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Interest cost	$ 825	$ 526
Expected return on plan assets	(730)	(1,031)
Amortization of net actuarial loss	228	200
Total net periodic pension (income) expense	$ 323	$ (305)