Share-Based Compensation - RSU Activity (Details) - Restricted share units	6 Months Ended
Jun. 30, 2021 USD ($) $ / shares shares
Number of restricted shares
Unvested restricted shares outstanding at beginning of the year (in shares)	37,740,804
Granted (in shares)	0
Vested (in shares)	(1,793,200)
Forfeited (in shares)	(3,695,150)
Unvested restricted shares outstanding at end of the year (in shares)	32,252,454
Vested or expected to vest (in shares)	32,252,454
Weighted average grant date fair value
Unvested restricted shares outstanding at beginning of the year (in dollars per share) \| $ / shares	$ 0.20
Vested (in dollars per share) \| $ / shares	0.20
Forfeited (in dollars per share) \| $ / shares	0.20
Unvested restricted shares outstanding at end of the year (in dollars per share) \| $ / shares	0.20
Vested or expected to vest (in dollars per share) \| $ / shares	$ 0.20
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options \| $	$ 2,221,352

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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