Earnings Per Share - Calculation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 41,982	$ 38,192	$ 27,525
Weighted average shares outstanding - basic (in shares)	38,599,300	37,948,796	37,267,188
Effect of potentially dilutive restricted stock units and options (in shares)	626,316	649,534	797,429
Weighted average shares outstanding - diluted (in shares)	39,225,616	38,598,330	38,064,617
Basic income per share (in dollars per share)	$ 1.09	$ 1.01	$ 0.74
Diluted income per share (in dollars per share)	$ 1.07	$ 0.99	$ 0.72