Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive (Loss)
Beginning Balance at Dec. 31, 2023	$ 677,066	$ 47,619	$ 177,424	$ 780,299	$ (217,737)	$ (110,539)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,523	0	0	29,523	0	0
Other comprehensive income (loss)	(11,065)	0	0	0	0	(11,065)
Cash dividends declared	(10,798)	0	0	(10,798)	0	0
Stock-based compensation expense	1,100	0	(1,609)	0	2,709	0
Restricted awards granted	0	0	(9)	0	9	0
Purchase of treasury shares	(3,653)	0	0	0	(3,653)	0
Ending balance at Mar. 31, 2024	682,231	47,619	175,747	799,024	(218,555)	(121,604)
Beginning Balance at Dec. 31, 2024	730,664	47,619	176,506	852,757	(230,499)	(115,719)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	30,342	0	0	30,342	0	0
Other comprehensive income (loss)	15,768	0	0	0	0	15,768
Cash dividends declared	(11,693)	0	0	(11,693)	0	0
Stock-based compensation expense	719	0	719	0	0	0
Restricted awards granted	0	0	(2,925)	0	2,925	0
Exercise of stock options	58	0	(59)	0	117	0
Purchase of treasury shares	(9,464)	0	0	0	(9,464)	0
Ending balance at Mar. 31, 2025	$ 756,336	$ 47,619	$ 174,300	$ 871,406	$ (237,038)	$ (99,951)