Net Income (Loss) per Share Attributable to Common Stock (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

The following table sets forth the calculation of basic and diluted net income (loss) per share attributable to common stock during the periods presented:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2017			2016			2017
Numerator:
Net income (loss)	$	1,388		$	4,304		$	(22,893	)	$	(23,762	)
Accretion of redeemable convertible preferred stock	65,082			(110,921		)	59,869			(135,690		)
Undistributed earnings attributable to participating securities	(52,805		)	—			(29,397		)	—
Net income (loss) attributable to common stock—basic	13,665			(106,617		)	7,579			(159,452		)
Net income (loss) attributable to common stock—diluted	1,388			(106,617		)	(22,893		)	(159,452		)
Denominator:
Weighted average shares used to compute net income (loss) per share attributable to common stock—basic	14,340,333			14,913,234			14,288,550			14,840,759
Weighted average shares used to compute net income (loss) per share attributable to common stock—diluted	74,080,026			14,913,234			69,710,552			14,840,759
Net income (loss) per share attributable to common stock—basic	$	0.95		$	(7.15	)	$	0.53		$	(10.74	)
Net income (loss) per share attributable to common stock—diluted	$	0.02		$	(7.15	)	$	(0.33	)	$	(10.74	)
(1) A reconciliation of net income (loss) attributable to common stock—basic to net income (loss) attributable to common stock—diluted is as follows:
Net income (loss) attributable to common stock—basic	$	13,665					$	7,579
Add-back: Accretion due to application of if-converted	(65,082		)				(59,869		)
Add-back: Undistributed earnings attributable to participating securities due to application of if-converted	52,805						29,397
Net income (loss) attributable to common stock—diluted	$	1,388					$	(22,893	)

Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following outstanding shares of common stock equivalents were excluded from the computation of the diluted net income (loss) per share attributable to common stock for the periods presented because their effect would have been anti-dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2016	2017	2016	2017
Redeemable convertible preferred stock	—	55,422,002	—	55,422,002
Options outstanding	4,205,443	13,782,401	11,614,015	13,782,401
Total	4,205,443	69,204,403	11,614,015	69,204,403