Earnings Per Share (Details 2) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Distributed earnings allocated to common stock	$ 32,001	$ 31,095	$ 30,369
Undistributed earnings allocated to common stock	91,735	88,419	87,237
Net earnings allocated to common stock	123,736	119,514	117,606
Net earnings allocated to participating securities	1,191	995	928
Net income available to common shareholders	$ 124,927	$ 120,509	$ 118,534
Weighted average shares outstanding for basic earnings per common share	24,615,546	24,687,324	25,038,127
Dilutive effect of stock compensation (in shares)	0	0	0
Weighted average shares outstanding for diluted earnings per common share	24,615,546	24,687,324	25,038,127
Basic earnings per common share (in dollars per share)	$ 5.03	$ 4.84	$ 4.70
Diluted earnings per common share (in dollars per share)	$ 5.03	$ 4.84	$ 4.70