Stock-Based Compensation - Summary of Stock Option Activity under Equity Plans (Details) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($) $ / shares shares
Shares
Options outstanding (in shares)	9,791
Exercised (in shares)	0
Expired (in shares)	0
Options outstanding (in shares)	9,791
Options exercisable (in shares)	9,791
Options vested and expected to vest (in shares)	9,791
Weighted Average Exercise Price
Options outstanding (in USD per share) \| $ / shares	$ 7.04
Options outstanding (in USD per share) \| $ / shares	7.04
Options exercisable (in USD per share) \| $ / shares	7.04
Options vested and expected to vest (in USD per share) \| $ / shares	$ 7.04
Weighted Average Remaining Contractual Life
Options outstanding	2 years 2 months 8 days
Options exercisable	2 years 2 months 8 days
Options vested and expected to vest	2 years 2 months 8 days
Aggregate Intrinsic Value
Options outstanding \| $	$ 0
Options exercisable \| $	0
Options vested and expected to vest \| $	$ 0

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of share options (or share units) exercised during the current period.

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Intrinsic Value, Outstanding

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