Defined Benefit Pension Plans (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	[1]	$ 125	$ 351
Interest cost	[2]	833	884
Expected return on plan assets	[2]	(1,028)	(1,147)
Recognized net actuarial loss	[2]	0	0
Net periodic benefit cost		(70)	88
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	[1]	0	39
Interest cost	[2]	162	176
Expected return on plan assets	[2]	0	0
Recognized net actuarial loss	[2]	31	59
Net periodic benefit cost		$ 193	$ 274

[1] Included in salaries and employee benefits expense in the Unaudited Consolidated Statements of Income.

[2] Included in other expenses in the Unaudited Consolidated Statements of Income.