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Share-Based Compensation - 2018 Plan and 2017 Plan (Details)	3 Months Ended
	Mar. 31, 2021
Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	4 years
Stock option vesting right percentage	25.00%
Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	3 years
Performance Based | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Stock option vesting right percentage	25.00%
Performance Based | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	3 years
Share options
Share-based Compensation Arrangement by Share-based Payment Award
Stock option term	10 years
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	3 years
RSUs | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	18 months
Stock option vesting right percentage	50.00%
RSUs | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Stock options vesting period	18 months
Stock option vesting right percentage	50.00%

X

- 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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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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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- Definition

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

+ References

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-Topic 718
-SubTopic 10
-Section 50
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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.

+ References

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