XML 97 R88.htm IDEA: XBRL DOCUMENT v3.20.4
Trade and Other Payables Amounts Falling Due After More than One Year - Summary of Deferred and Earnout Related Obligations (Detail) - GBP (£)
£ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Disclosure Of Fair Value Of Contingent Consideration [abstract]      
At the beginning of the period [1] £ 243.7 £ 400.8 £ 400.8
Earnouts paid [1] (88.5) (57.9) (130.0)
New acquisitions [1] 2.9 3.6 9.6
Revision of estimates taken to goodwill [1] (3.0) 1.1 (14.1)
Revaluation of payments due to vendors (note 6) [1] (7.4) 3.1 3.8
Transfer to disposal group classified as held for sale [1]     (11.5)
Exchange adjustments [1] 5.6 1.3 (14.9)
At the end of the period [1] £ 153.3 £ 352.0 £ 243.7
[1] Figures have been restated to be in accordance with IAS 39 Financial Instruments: Recognition and Measurement, as described in the accounting policies