Percentage of equity interest right to purchase upon exercise of stock options.

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Percentage of equity upon exercise of options.

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- Definition

Share-based compensation arrangement by share-based payment award, options, grants in period, grant date fair value.

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- Definition

Represents the percentage of the share-based compensation award that vests on the first anniversary date.

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No definition available.

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- Definition

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

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- Definition

Face amount or stated value per share of common stock.

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-Publisher FASB
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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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- Definition

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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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

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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- Definition

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

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- Definition

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

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.

+ References

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- Definition

Net number of share options (or share units) granted during the period.

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Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. 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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- Definition

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

+ References

No definition available.

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- Definition

Description of modification of award under share-based payment arrangement. Includes, but is not limited to, terms for expiration date, vesting rights and exercise price.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

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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Expected term of 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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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Stock Options - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands						1 Months Ended	12 Months Ended
	Sep. 16, 2020	Mar. 07, 2018	May 01, 2016	May 01, 2015	Aug. 22, 2012	Dec. 31, 2011	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, restricted stock award, net of forfeitures		2,000,000
Common Stock, Par or Stated Value Per Share		$ 0.001					$ 0.001	$ 0.001
Allocated Share-based Compensation Expense							$ 10,203	$ 3,003	$ 4,305
Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage		60.00%
Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage		40.00%
Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage		40.00%
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, restricted stock award, net of forfeitures				729,000
Share-based compensation arrangement by share-based payment award, options, grants in period, net of forfeitures				1,341,000
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price				$ 4.98
Share-based compensation arrangement by share-based payment award, expiration date				Apr. 30, 2023
Share-based compensation arrangement by share-based payment award, plan modification, description and terms							the board of directors approved that an additional 30% of the Options to be vested on December 16, 2016, and restrictions of an additional 30% of the Restricted Shares were removed on December 16, 2016. On April 25, 2018, the board of directors approved that all remaining unvested Options and Restricted Shares that were granted on May 1, 2015 were fully vested on April 25, 2018.
2012 Plan \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage			20.00%
2020 ESOP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross								0	0
Exercise price of options vested, granted to officers and employees	$ 12,000
Share-based compensation arrangement by share-based payment Award, options vesting period	8 years
Expected volatility							73.22%
Expected life							2 years
Risk-free interest rate							2.72%
Dividend rate							0.00%
2020 ESOP \| Maximum [Member] \| Sinovac LS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of equity interest right to purchase upon exercise of stock options	15.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, percentage of outstanding Stock maximum							10.00%
Share-based compensation arrangement by share-based payment award, options, grants in period, gross						767,000
Share-based compensation arrangement by share-based payment award, fair value assumptions, exercise Price						$ 2.37
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value							$ 0	$ 0	$ 1,135
Stock options \| 2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized					4,000,000
Share-based compensation arrangement by share-based payment award, options, exercises in period, intrinsic value							598
Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options							$ 0
Stock options \| 2012 Plan \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period					10 years
Stock options \| 2003 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares available for grant							42,800
Share based compensation arrangements by share Based payment award options vesting rights percentage							10.00%
Share-based compensation arrangement by share-based payment award, options, exercises in period, intrinsic value							$ 0	$ 27	$ 426
Stock options \| 2003 Plan \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period							10 years
Stock options \| 2020 ESOP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of options issued							$ 7,200
Share-based compensation arrangement by share-based payment award, options, exercises in period, intrinsic value							$ 3,000
Stock options \| 2020 ESOP \| Sinovac LS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of equity upon exercise of options							15.00%
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Par or Stated Value Per Share				$ 0.001
Restricted Stock \| 2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options							$ 6,555
Employee service Share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition							26 months