Stockholders' Equity - Summary of RSU and RSA Award Activity (Details) - Restricted Stock Units and Restricted Stock Awards shares in Thousands	12 Months Ended
Dec. 31, 2021 $ / shares shares
Weighted-Average Grant Date Fair Value per Restricted Stock
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Beginning Balance \| $ / shares	$ 15.10
Weighted-Average Grant Date Fair Value per Restricted Stock, Granted \| $ / shares	59.28
Weighted-Average Grant Date Fair Value per Restricted Stock, Vested \| $ / shares	16.20
Weighted-Average Grant Date Fair Value per Restricted Stock, Forfeited \| $ / shares	16.32
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Ending Balance \| $ / shares	$ 26.07
Class A Common Stock
Outstanding Restricted Stock
Outstanding Restricted Stock, Unvested Beginning Balance \| shares	131,172
Outstanding Restricted Stock, Granted \| shares	23,131
Outstanding Restricted Stock, Vested \| shares	(59,009)
Outstanding Restricted Stock, Forfeited \| shares	(9,114)
Outstanding Restricted Stock, Unvested Ending Balance \| shares	86,180

Share based compensation arrangement by share based payment award equity instruments other than options rollforward.

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Share based compensation arrangement by share based payment award, equity instruments other than options, weighted average grant date fair value.

+ References

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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- Definition

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 weighted average fair value at grant date for nonvested equity-based awards issued 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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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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