Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 11,311	$ 3,284
Weighted-average shares outstanding — basic (in shares)	42,357	40,692
Effect of dilutive securities from stock award plans (in shares)	1,264	1,589
Weighted-average shares outstanding — diluted (in shares)	43,621	42,281
Net income per share - basic (in dollars per share)	$ 0.27	$ 0.08
Net income per share - diluted (in dollars per share)	$ 0.26	$ 0.08
Anti-dilutive weighted-average shares related to stock award plans (in shares)	1,744	635