CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Class A common stock
Par value (usd per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	200,000,000	200,000,000
Common stock issued (in shares)	35,028,171	35,032,053
Common stock outstanding (in shares)	35,028,171	35,032,053
Class B
Par value (usd per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	800,000,000	800,000,000
Common stock issued (in shares)	118,746,788	113,177,162
Common stock outstanding (in shares)	118,746,788	113,177,162

Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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