Net Loss per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the computation of the Company's net loss per share (basic) and net loss per share (diluted) attributable to common stockholders (in thousands, except per share amounts):

	Years Ended December 31,
	2018			2017			2016
Numerator:
Net loss attributable to Class A and Class B common stockholders	$	(241,753	)	$	(262,599	)	$	(279,658	)
Less: noncumulative dividends to preferred stockholders	—			—			—
Less: undistributed earnings to participating securities	—			—			—
Net loss attributable to common stockholders (basic)	(241,753		)	(262,599		)	(279,658		)
Add: adjustments to undistributed earnings to participating securities	—			—			—
Net loss attributable to Class A and Class B common stockholders (diluted)	$	(241,753	)	$	(262,599	)	$	(279,658	)
Denominator:
Weighted average shares of common stock (basic)	53,268			10,248			10,046
Effect of potentially dilutive stock options	—			—			—
Weighted average shares of common stock (diluted)	53,268			10,248			10,046
Net loss per share attributable to Class A and Class B common stockholders:
Basic and diluted	$	(4.54	)	$	(25.62	)	$	(27.84	)

Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share

The following common stock equivalents (in thousands) were excluded from the computation of net loss per share attributable to common shareholders (diluted) for the periods presented as their inclusion would have been antidilutive:

	Years Ended December 31,
	2018	2017	2016
Convertible and non-convertible redeemable preferred stock and convertible notes	27,230	85,476	84,551
Stock options to purchase common stock	4,962	2,950	2,668
Convertible redeemable preferred stock warrants	—	60	59
Convertible redeemable common stock warrants	—	312	313
	32,192	88,798	87,591