Employee Benefits (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024		Dec. 31, 2023	Dec. 31, 2022
Qualified Pension Plan [Member]
Net Periodic Benefit Cost:
Service cost	[1]	$ 500	[2]	$ 1,403	$ 2,062
Interest cost	[3]	3,331		3,540	2,368
Expected return on plan assets	[3]	(4,111)		(4,590)	(4,634)
Recognized net actuarial loss	[3]	0		0	1,020
Net periodic benefit cost		(280)		353	816
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (on a pre-tax basis):
Net loss (gain)		99		6,991	(2,074)
Recognized in other comprehensive income (loss)		99		6,991	(2,074)
Total recognized in net periodic benefit cost and other comprehensive income (loss)		(181)		7,344	(1,258)
Non-Qualified Retirement Plans [Member]
Net Periodic Benefit Cost:
Service cost	[1]	0		156	218
Interest cost	[3]	649		706	423
Expected return on plan assets	[3]	0		0	0
Recognized net actuarial loss	[3]	123		237	692
Net periodic benefit cost		772		1,099	1,333
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (on a pre-tax basis):
Net loss (gain)		(299)		(516)	(4,572)
Recognized in other comprehensive income (loss)		(299)		(516)	(4,572)
Total recognized in net periodic benefit cost and other comprehensive income (loss)		$ 473		$ 583	$ (3,239)

[1] Included in salaries and employee benefits expense in the Consolidated Statements of Income (Loss). Service cost for 2024 represents administrative expenses related to the termination of the qualified pension plan.

[2] Service cost for 2024 represents administrative expenses related to the termination of the qualified pension plan.

[3] Included in other expenses in the Consolidated Statements of Income (Loss).