Maximum annual increase of common stock reserved for issuance.

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Number of shares of common stock issuable upon exercise of outstanding options.

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Share based compensation arrangement by share based payment award common stock issuable upon exercise of outstanding options.

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

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Aggregate number of common shares reserved for future issuance.

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Face amount or stated value per share of common stock.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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

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Amount of cost to be recognized for option under share-based payment arrangement.

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

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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 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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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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Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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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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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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No definition available.

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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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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Jan. 01, 2021	Jul. 02, 2020	Jul. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reserved shares of common stock for issuance				11,279,849	44,793,329
Stock-based compensation expense				$ 9,429	$ 2,890
Weighted average grant-date fair value of stock options granted				$ 13.77	$ 2.17
Common stock, par value				$ 0.0001	$ 0.0001
Restricted Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards forfeited or cancelled				22,316
Number of shares granted				315,023	2,434,515
Stock-based compensation expense				$ 3,600	$ 2,900
Weighted average grant date fair value of restricted stock granted				$ 21.07	$ 2.93
Weighted average grant date fair value of restricted stock vested				$ 1.84	$ 1.80
Unrecognized stock-based compensation cost				$ 10,400
Weighted average period of cost expected to be recognized				3 years 7 days
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average period of cost expected to be recognized				3 years 6 months 10 days
Unrecognized stock-based compensation expenses				$ 48,100
2018 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards vesting period				4 years
Awards contractual term				10 years
Common stock shares granted				6,715,415
Number of shares of common stock issuable upon exercise of outstanding options				98,643
Awards forfeited or cancelled				6,710
Reserved shares of common stock for issuance				0
Stock-based compensation expense				$ 1,700
2020 Stock Option and Grant Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards vesting period		4 years
Awards contractual term		10 years
Reserved shares of common stock for issuance				3,895,961
Common stock authorized for issuance		8,008,734
Cumulative increase in number shares reserved for issuance, percentage		5.00%
Common stock issuable upon exercise of outstanding options				3,874,266
2020 Stock Option and Grant Plan \| Restricted Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted				238,507
2020 Stock Option and Grant Plan \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares added to number of available shares under plan	3,255,343
2020 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reserved shares of common stock for issuance			611,354
Cumulative increase in number shares reserved for issuance, percentage			1.00%
Common stock, par value			$ 0.0001
Annual increase in number of shares reserved for issuance			1,222,707