Net Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Computations of Basic and Diluted Net Income (Loss) Per Share

The computations of basic and diluted net income (loss) per share were as follows (in thousands, except per share data):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2021			2020		2021			2020
Basic net income (loss) per share:
Net income (loss)	$	(58,405	)	$	8,791	$	(166,183	)	$	(65,009	)
Shares used in computation:
Weighted-average common shares outstanding		42,629			37,342		42,324			37,234
Basic net income (loss) per share	$	(1.37	)	$	0.24	$	(3.93	)	$	(1.75	)
Diluted net income (loss) per share:
Net income (loss)	$	(58,405	)	$	8,791	$	(166,183	)	$	(65,009	)
Shares used in computation:
Weighted-average common shares outstanding		42,629			37,342		42,324			37,234
Stock options		—			1,529		—			—
Employee stock purchase plan		—			6		—			—
Weighted-average diluted common shares		42,629			38,877		42,324			37,234
Diluted net income (loss) per share	$	(1.37	)	$	0.23	$	(3.93	)	$	(1.75	)

Schedules for Computation of Diluted Weighted-Average Shares Outstanding

The following potentially dilutive common stock equivalents outstanding at the end of the period were excluded from the computations of weighted-average diluted common shares for the periods indicated as their effects would be anti-dilutive (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Stock options issued and outstanding		7,177		4,072		7,177		6,409
Unvested restricted stock units outstanding		265		—		265		—
Employee stock purchase plan		15		—		15		21
		7,457		4,072		7,457		6,430