Number of executives temporary equity sold.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Cancellation Period after Termination of Employment

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- Definition

Percentage of shares available for grant of shares outstanding at closing of the merger under incentive plan.

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No definition available.

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Ratio applied to the exchange option for share based payment arrangements.

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Temporary equity shares repurchased during period.

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Temporary equity repurchased, value during period.

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The amount of discount on temporary equity issued.

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No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of options outstanding, including both vested and non-vested options.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Stock-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended		12 Months Ended
	Dec. 31, 2020 USD ($) shares	Jul. 31, 2019 USD ($) item shares	May 31, 2019 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares
Stock-Based Compensation
Purchase of common stock						0.4697
Percentage of aggregate number of shares				5.00%		5.00%
Stock based compensation expense				$ 16,835	$ 672	$ 11,296	$ 35,972
Options outstanding \| shares	6,414,611					6,414,611	7,428,682
Shares reserved for issuance \| shares	11,137,824			11,005,115		11,137,824
Vesting percentage				25.00%		25.00%
Maximum
Stock-Based Compensation
Vesting period				3 years		3 years
Expiration period				10 years		10 years
Cancellation Period after termination of employment				3 months		3 months
General and administrative
Stock-Based Compensation
Stock based compensation expense				$ 12,435	$ 223	$ 4,145	$ 34,739
Executives \| Redeemable Convertible Preferred Stock
Stock-Based Compensation
Temporary equity, shares issued discount to fair value \| item		11
Restricted stock units
Stock-Based Compensation
Shares granted \| shares				132,709		2,450,718
Secondary market transaction
Stock-Based Compensation
Stock based compensation expense	$ 1,616			$ 1,933		$ 1,616	33,232
Secondary market transaction \| General and administrative
Stock-Based Compensation
Stock based compensation expense			$ 33,232				$ 33,232
Secondary market transaction \| Redeemable Convertible Preferred Stock
Stock-Based Compensation
Temporary equity repurchased, shares \| shares		901,940	7,559,047
Temporary equity repurchased, value			$ 4,023
Temporary equity repurchase price \| $ / shares			$ 0.53
Temporary equity, shares issued discount to fair value		$ 2,553
Secondary market transaction \| Employees
Stock-Based Compensation
Stock based compensation expense	927
Secondary market transaction \| Former Employees
Stock-Based Compensation
Stock based compensation expense	$ 689