Earnings per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income	$ 16,800	$ 13,166	$ 37,834	$ 33,483
Denominator for basic earnings per share - weighted average shares outstanding	29,439	29,490	29,376	29,516
Effect of dilutive securities—employee stock options and restricted stock units	65	110	117	153
Denominator for diluted earnings per share—adjusted weighted-average shares outstanding	29,504	29,600	29,493	29,669
Basic (in dollars per share)	$ 0.57	$ 0.45	$ 1.29	$ 1.14
Diluted earnings per share	$ 0.57	$ 0.45	$ 1.28	$ 1.13
Average antidilutive options and restricted stock units excluded from computation of diluted earnings per share	575	400	367	253