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Aggregate number of common shares reserved for future issuance.

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Amount of paid and unpaid cash, stock, and paid-in-kind dividends declared for 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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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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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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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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Purchase price of common stock expressed as a percentage of its fair value.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Share-Based Compensation - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Oct. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock available for issuance		7,007,104
Other long-term liabilities		$ 18,000	$ 82,000
Unrecognized compensation cost		$ 36,400,000
Unrecognized compensation cost, expected to be recognized over weighted average remaining service period		2 years 2 months 12 days
Share-based compensation		$ 14,461,000	$ 6,748,000
Contractual term of options granted		10 years
Dividends issued for options		$ 0
Dividends expected to be issued over life of options		$ 0
Estimated dividend yield		0.00%
Separation and Release Agreement \| Matthew Plunkett
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation	$ 2,300,000
Severance benefits expense	$ 300,000
Agreement execution date	Oct. 02, 2020
Period in which severance benefits payable after termination date	6 months
Restricted Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares subject to repurchase		16,181	77,393
Other long-term liabilities		$ 18,000	$ 100,000
2020 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued		0
Number of common stock available for issuance		622,652
Maximum percentage of employee compensation eligible for plan		15.00%
Offering period		6 months
Commons stock purchase price as percentage of fair value		85.00%
2015 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued		1,798,614
2020 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock authorized for issuance		4,295,638
Increase in share limit as percentage of outstanding shares of common stock on last trading day in prior year		5.00%
Number of common stock available for issuance		2,179,766