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Share of results of associates - Additional information (Detail) - GBP (£) £ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Disclosure of associates [line items] |  |  |  |
Restructuring and one off transaction costs | £ 17.9 | £ 33.9 |  | £ 153.5
Continuing Operation [member] |  |  |  |
Disclosure of associates [line items] |  |  |  |
Share of exceptional losses and gains | (51.4) | £ (13.6) | [1] | (47.8)
Kantar [member] |  |  |  |
Disclosure of associates [line items] |  |  |  |
Amortisation and impairment of acquired intangible assets other than goodwill | 27.3 |  |  | 5.3
Restructuring and one off transaction costs | £ 23.1 |  |  | £ 20.3
[1] | Figures for the period ended 30 June 2019 have been re-presented in accordance with IFRS 5: Non-current Assets Held for Sale and Discontinued Operations, as described in note 13.

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- Definition The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 98 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_98_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Amortisation and impairment of acquired intangible assets other than goodwill. + References No definition available. + Details
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- Definition Share of exceptional gains (losses) of associates. + References No definition available. + Details
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- Details
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- Details
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