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Analysis of cash flows - Proceeds from borrowings (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Analysis of cash flows [Abstract]
Increase in drawings on bank loans	£ 247.2	£ 0.0

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- Definition

The cash inflow from current borrowings obtained. [Refer: Current borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 17
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-URIDate 2022-03-24

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X

- Definition

Analysis of cash flows

+ References

No definition available.

+ Details

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