Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Preferred stock par value	$ 0.00001
Preferred stock shares authorized	1,000,000,000	0
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value		$ 0.00001
Common stock shares authorized		340,000,000
Common stock shares, issued		22,438,472
Common stock shares outstanding		22,438,472
Redeemable Convertible Preferred Stock
Temporary equity par value	$ 0.00001	$ 0.00001
Temporary equity shares authorized	0	227,328,900
Temporary equity shares issued	0	219,175,709
Temporary equity shares outstanding	0	219,175,709
Class A Common Stock
Common stock par value	$ 0.00001
Common stock shares authorized	18,000,000,000
Common stock shares, issued	279,970,833
Common stock shares outstanding	279,970,833
Class B Common Stock
Common stock par value	$ 0.00001
Common stock shares authorized	100,000,000	0
Common stock shares, issued	12,779,709	0
Common stock shares outstanding	12,779,709	0

Face amount or stated value per share of common stock.

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