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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
Jun. 30, 2023
Dec. 31, 2022
Trade and receivables [Abstract]    
Prepayments £ 2.2 £ 3.9
Fair value of derivatives 15.3 0.6
Other debtors 139.3 214.1
Trade and other receivables £ 156.8 £ 218.6