Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 24,341	$ 21,342
Less: earnings allocated to participating securities	(214)	(200)
Net earnings allocated to common shareholders	24,127	21,142
Distributed earnings allocated to common stock	9,833	8,943
Undistributed earnings allocated to common stock	$ 14,294	$ 12,199
Average shares outstanding (in shares)	14,818	14,974
Effect of dilutive securities:
Employee stock awards (in shares)	26	28
Average shares outstanding, diluted (in shares)	14,844	15,002
Basic earnings per common share (in dollars per share)	$ 1.63	$ 1.41
Diluted earnings per share (in dollars per share)	$ 1.63	$ 1.41