Fair-value of the unvested portion of accelerated equity

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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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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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 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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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

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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Feb. 29, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance, Total		21,880,211	17,766,601
Intrinsic value of the options exercised		$ 10,700	$ 3,800	$ 13,100
Weighted-average grant-date fair value of options granted		$ 17.82	$ 12.33	$ 25.13
Unrecognized stock-based compensation expense related to unvested stock options		$ 79,500
Unrecognized stock-based compensation expense, weighted-average period of recognition		2 years 9 months
The fair-value of the unvested portion of the accelerated equity awards		$ 11,200
Stock-based compensation expense		61,772	$ 31,196	$ 20,724
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
The fair-value of the unvested portion of the accelerated equity awards		3,700
Stock-based compensation expense		34,126	18,113	11,847
General and Administration
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
The fair-value of the unvested portion of the accelerated equity awards		7,500
Stock-based compensation expense		27,646	13,083	8,877
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation expense related to unvested stock options		$ 51,000
Unrecognized stock-based compensation expense, weighted-average period of recognition		2 years 11 months 12 days
RSU vested, fair value		$ 14,300	$ 7,900	$ 3,100
2020 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	4 years
2020 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance, Total		2,394,407
Purchase price rate	85.00%
Shares purchases		210,679
Unrecognized compensation cost related to ESPP		$ 3,300