Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

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- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
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-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

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Stock-Based Compensation - Summary of Estimated Fair Value of Stock Option Awards (Details) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility			65.80%	60.00%	70.00%
Expected term (in years)					4 years
Risk-free interest rate			0.10%		2.68%
Risk-free interest rate minimum	0.05%	0.29%		0.014%
Risk-free interest rate maximum	0.16%	0.37%		0.0143%
Dividend yield	0.00%	0.00%	0.00%	0.00%	0.00%
Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)			$ 679.31	$ 94.85	$ 59.60
Class B common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)			$ 6.7931	$ 0.9485	$ 0.5960
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	68.50%	68.30%
Expected term (in years)	6 months	3 years	6 months	3 years
Minimum \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)	$ 565.85	$ 85.42
Minimum \| Class B common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)	$ 5.66	$ 0.85
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	75.60%	73.30%
Expected term (in years)	1 year 9 months	5 years	1 year 5 months 26 days	5 years
Maximum \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)	$ 1,549.43	$ 97.58
Maximum \| Class B common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value (in dollars per share)	$ 15.49	$ 0.98