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Shareholders’ Equity - Open Market Sales Agreement (Details) $ / shares in Units, $ in Millions	Sep. 30, 2020 $ / shares	Sep. 18, 2020 USD ($)	Dec. 31, 2019 $ / shares
Class of Stock
Commission, percentage of gross sales price		0.030
Ordinary Shares
Class of Stock
Stock par value (usd/gbp per share) | $ / shares	$ 0.000042		$ 0.000042
Sale of Stock, Authorized Amount | $		$ 100

X

- Definition

Commission, Percentage Of Gross Sales Price

+ References

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- Definition

Sale of Stock, Authorized Amount

+ References

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- Definition

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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