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Share Plans - Additional Information (Details) - $ / shares	1 Months Ended
	Jun. 28, 2020	May 31, 2020	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Granted during the year (in shares)	27,280	2,000	130,000
Granted during the year (in USD per share)	$ 13.38	$ 13.13	$ 11.30

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- Definition

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

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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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