Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Adjustment	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Adjustment	Accumulated Other Comprehensive Income (Loss)
Beginning Balances at Dec. 31, 2019	$ 656,023		$ 0	$ 0	$ 379,853	$ 269,738		$ 6,432
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	68,499					68,499
Other comprehensive income (loss), net of tax	21,420							21,420
Amortization of unearned compensation	1,206				1,206
Exercise of stock options	157				157
Stock option expense	132				132
Stock issued stock plans	1,233				1,233
Repurchase of outstanding stock	(19,636)				(19,636)
Cash dividends on common stock	(21,183)					(21,183)
Ending Balances at Dec. 31, 2020	692,216	$ (15,635)	0	0	362,945	301,419	$ (15,635)	27,852
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	87,091					87,091
Other comprehensive income (loss), net of tax	(20,507)							(20,507)
Amortization of unearned compensation	1,751				1,751
Exercise of stock options	1,062				1,062
Stock option expense	68				68
Stock awards vested	(1,355)				(1,355)
Repurchase of outstanding stock	(7,607)				(7,607)
Stock retirement plans	(4,742)				(4,742)
Cash dividends on common stock	(24,768)					(24,768)
Ending Balances at Dec. 31, 2021	723,209		0	0	352,122	363,742		7,345
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	93,408					93,408
Other comprehensive income (loss), net of tax	(113,543)							(113,543)
Amortization of unearned compensation	2,462				2,462
Exercise of stock options	145				145
Stock option expense	13				13
Net settlement of share awards	(1,824)				(1,824)
Stock retirement plans	1,270				1,270
Cash dividends on common stock	(27,765)					(27,765)
Ending Balances at Dec. 31, 2022	$ 677,375		$ 0	$ 0	$ 354,188	$ 429,385		$ (106,198)