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Taxation - Tax rate (Details)	1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Disclosure of non-adjusting events after reporting period [line items]
Main rate of UK corporation tax	25.00%			19.00%	19.00%
Change in tax rate announced
Disclosure of non-adjusting events after reporting period [line items]
Main rate of UK corporation tax		19.00%	19.00%

X

- Definition

The applicable income tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_c_ii&doctype=Standard
-URIDate 2021-03-24

+ Details

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Details

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