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Convertible Preferred Stock and Common stock (Tables)

3 Months Ended

Mar. 31, 2021

Stockholders' Equity Note [Abstract]

Summary of Preferred Stock

		March 31, 2021
Series of Convertible Preferred Stock		Year Issued				Shares Authorized				Shares Issued and Outstanding				Issuance Price/ Liquidation Price (Per Share)				Aggregate Liquidation Value				Carrying Value (Net of Issuance Costs)
Series A			2013				54,811,930				54,811,930			$	1.0000			$	54.8			$	54.7
Series B			2014-2015				18,133,240				18,133,240				2.0766				37.7				37.5
Series C			2015-2016				13,580,260				13,580,260				4.0500				55.0				54.8
Series D			2016-2017				15,920,450				—				4.2632				—				—
Series E			2017-2018				78,543,890				78,543,890				6.7478				530.0				529.0
Series F			2018				33,686,160				33,686,160				11.8570				399.4				398.8
Series G			2019-2020				22,371,620				22,371,620				15.4269				345.1				344.3
							237,047,550				221,127,100							$	1,422.0			$	1,419.1

Summary of Stock by Class

As of March 31, 2021, the Company had three classes of common stock: Class A common stock, Class B common stock and Class C common stock. Each class has par value of $0.00001.

		March 31, 2021
		Shares Authorized				Shares Issued				Shares Outstanding
Class A common stock			1,000,754,910				126,295,420				124,045,420
Class B common stock			270,618,860				4,562,160				4,562,160
Class C common stock			100,000,000				15,244,490				15,244,490
Total			1,371,373,770				146,102,070				143,852,070

As of December 31, 2020, the Company had two classes of common stock: Class A common stock and Class B common stock. Each class has a par value of $0.00001.

		December 31, 2020
		Shares Authorized				Shares Issued				Shares Outstanding
Class A common stock			530,136,050				118,549,390				116,299,390
Class B common stock			170,618,860				6,672,510				6,672,510
Total			700,754,910				125,221,900				122,971,900

Summary of Common Stock Reserved For Issuance

As of March 31, 2021 and December 31, 2020, the Company had shares of common stock reserved for issuance as follows:

		March 31, 2021				December 31, 2020
Convertible preferred stock outstanding			223,033,725				238,954,050
Options issued and outstanding			59,603,390				62,827,150
Restricted stock units issued and outstanding			50,272,925				32,556,160
Shares available for future stock-based incentive award issuances			41,105,315				11,679,150
Total			374,015,355				346,016,510

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Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.

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