Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 83,811	$ 85,888	$ 81,825
Unrealized Gains (Losses) on Securities:
Unrealized Holding Gain (Loss) Arising During the Period	(39,113)	58,769	(353,013)
Reclassification Adjustment for Gains Included in Net Income	34,788	(40)	(563)
Tax Effect	921	(12,351)	74,600
Net of Tax	(3,404)	46,378	(278,976)
Postretirement Benefit Obligation:
Net (Loss) Arising During the Period	0	0	0
Reclassification Adjustment for Amortization of Prior Service Cost and Net	0	0	54
Tax Effect	0	0	0
Net of Tax	0	0	54
Total Other Comprehensive Income (Loss)	(3,404)	46,378	(278,922)
COMPREHENSIVE INCOME (LOSS)	$ 80,407	$ 132,266	$ (197,097)