Net Income (Loss) Per Share (Schedule of Net Income (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net income (loss)	$ (68,987)	$ 49,387	$ 58,293
Denominator:
Weighted average common shares - basic	29,007	30,241	29,897
Potentially dilutive common share equivalent		761	743
Weighted average common shares - dilutive	29,007	31,002	30,640
Basic net income (loss) per share	$ (2.38)	$ 1.63	$ 1.95
Diluted net income (loss) per share	$ (2.38)	$ 1.59	$ 1.90
Anti-dilutive employee stock-based awards, excluded	1,556	422	832