Basic and Diluted Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Summary of Computation of Basic and Diluted Net Income Per Share

The following table sets forth the computation of basic and diluted net income per share (in thousands except per share amounts):

	Years Ended
	2021			2020			2019
Numerator:
Net income	$	24,501		$	5,913		$	14,048
Denominator:
Weighted average common shares:
Common shares outstanding		47,213			45,616			44,504
Less:  Unvested restricted stock		(3	)		(11	)		(11	)
Denominator for basic calculation		47,210			45,605			44,493
Weighted average effects of potentially diluted common stock:
Stock options		2,145			2,272			2,254
Unvested restricted stock		5			4			6
RSUs		86			71			142
PSUs		10			1			—
Denominator for diluted calculation		49,456			47,953			46,895
Net income per share:
Basic	$	0.52		$	0.13		$	0.32
Diluted	$	0.50		$	0.12		$	0.30

Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share

	Years Ended
	2021		2020		2019
Stock options		228		20		1,503
Restricted stock, RSUs and PSUs		6		—		—
Total		234		20		1,503