Computation of Basic and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerators:
Net income	$ 72,878	$ 74,051	$ 50,331
Denominators:
Weighted average common shares outstanding—basic	35,844	35,652	35,396
Dilutive potential common shares	187	257	385
Weighted average common shares outstanding— diluted	36,031	35,909	35,781
Antidilutive potential common shares excluded from above	99	91	13
Earnings per Common Share:
Basic	$ 2.03	$ 2.08	$ 1.42
Diluted	$ 2.02	$ 2.06	$ 1.41