Earnings Per Share - Summary of weighted average number of shares outstanding (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income	$ 23,163	$ 20,688
Denominator:
Weighted average common shares outstanding (in shares)	16,618	16,916
Weighted average dilutive securities (in shares)	206	217
Weighted average common shares outstanding, diluted (in shares)	16,824	17,133
Basic (in dollars per share)	$ 1.39	$ 1.22
Diluted (in dollars per share)	$ 1.38	$ 1.21