Earnings Per Share - Schedule of Dilutive Effect of Stock Options RSUs and PSAs (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net Income	$ 18,351	$ 10,612
Weighted-average number of basic shares outstanding during the period	18,885	18,840
Dilutive effect of stock options, RSUs, and performance shares	233	357
Weighted-average number of diluted shares outstanding during the period	19,118	19,197
Basic earnings per share	$ 0.97	$ 0.56
Diluted earnings per share	$ 0.96	$ 0.55