Organization and Summary of Significant Accounting Policies - Weighted Average Number of Shares Outstanding and Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator for basic and diluted earnings per share:
Net income (loss)	$ (60,018)	$ (1,724)	$ 882
Denominator:
Weighted average shares outstanding basic (in shares)	66,191	61,782	59,190
Dilutive effect of stock-based awards (in shares)			828
Diluted weighted average shares outstanding (in shares)	66,191	61,782	60,018
Anti-dilutive stock-based awards excluded (in shares)	7,690	12,150	12,627
Net income (loss) per share:
Basic (in dollars per share)	$ (0.91)	$ (0.03)	$ 0.01
Diluted (in dollars per share)	$ (0.91)	$ (0.03)	$ 0.01