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Trade and other receivables - Summary of Trade and Other Receivables, Amounts Falling Due After More Than One Year (Detail) - GBP (£)
£ in Millions
Dec. 31, 2018
Dec. 31, 2017
Trade and other non-current receivables [abstract]    
Prepayments £ 3.0 £ 3.6
Accrued income 16.5 20.5
Fair value of derivatives 8.4 2.1
Other debtors 152.1 150.0
Trade and other receivables £ 180.0 £ 176.2 [1]
[1] Prior year figures have been restated for the impact of the adoption of IFRS 15 Revenue from Contracts with Customers, as described in the accounting policies.