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Trade and other payables - Summary of Trade and Other Payables, Amounts Falling Due After More Than One Year (Detail) - GBP (£) £ in Millions | Jun. 30, 2020 | Dec. 31, 2019 | Jun. 30, 2019
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Trade and other non-current payables [abstract] |  |  |
Payments due to vendors (earnout agreements) | £ 101.2 | £ 111.4 | £ 203.9
Liabilities in respect of put option agreements with vendors | 120.5 | 151.4 | 223.0
Fair value of derivatives | 0.6 | 21.2 |
Other creditors and accruals | 164.0 | 199.3 | 140.8
Trade and other payables | £ 386.3 | £ 483.3 | £ 567.7

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- Definition The amount of non-current derivative financial liabilities. [Refer: Derivative financial liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current trade payables and non-current other payables. [Refer: Other non-current payables; Non-current trade payables] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph k -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_k&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current payables that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Contingent consideration non-current payable to vendors (earnout agreements). + References No definition available. + Details
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