v3.26.3
Financial risk management - Movements on the hedging reserve (Details) - GBP (£)
£ in Thousands
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Movements on the hedging reserve      
Hedging reserve, beginning balance £ 223 £ (1,000) £ 4,002
Movement recognized in other comprehensive income, hedging reserve      
Exchange differences on hedged foreign exchange risks (989) 582 (4,482)
Reclassified to profit or loss (159) 1,049 1,986
Change in fair value     (4,173)
Tax relating to above 289 (408) 1,667
Movement recognized in other comprehensive income (859) 1,223 (5,002)
Hedging reserve, ending balance (636) 223 (1,000)
Movements on hedging reserve before tax      
Hedging reserve, before tax, beginning balance 322 6,216 12,885
Movement recognized in other comprehensive income, hedging reserve, before tax      
Exchange differences on hedged foreign exchange risks (989) 582 (4,482)
Reclassified to profit or loss (159) 1,049 1,986
Change in fair value     (4,173)
Movement recognized in other comprehensive income (1,148) 1,631 (6,669)
Reclassified   (7,525)  
Hedging reserve, before tax, ending balance (826) 322 6,216
Movements on hedging reserve tax      
Hedging reserve, tax, beginning balance (99) (7,216) (8,883)
Movement recognized in other comprehensive income (loss), reserve of cash flow hedges, tax      
Tax (expense)/credit relating to movements on hedges 289 (408) 1,667
Reclassified   7,525  
Hedging reserve, tax, ending balance 190 (99) (7,216)
Currency risk      
Movement recognized in other comprehensive income, hedging reserve      
Exchange differences on hedged foreign exchange risks (1,181) 1,069 (880)
Reclassified to profit or loss 185 347 332
Movements on hedging reserve before tax      
Hedging reserve, before tax, beginning balance 996 (420) 128
Movement recognized in other comprehensive income, hedging reserve, before tax      
Exchange differences on hedged foreign exchange risks (1,181) 1,069 (880)
Reclassified to profit or loss 185 347 332
Movement recognized in other comprehensive income (996) 1,416 (548)
Hedging reserve, before tax, ending balance   996 (420)
Interest rate risk      
Movement recognized in other comprehensive income, hedging reserve      
Change in fair value     (4,173)
Movements on hedging reserve before tax      
Hedging reserve, before tax, beginning balance     4,173
Movement recognized in other comprehensive income, hedging reserve, before tax      
Change in fair value     (4,173)
Movement recognized in other comprehensive income     (4,173)
Other price risk      
Movement recognized in other comprehensive income, hedging reserve      
Exchange differences on hedged foreign exchange risks 192 (487) (3,602)
Reclassified to profit or loss (344) 702 1,654
Movements on hedging reserve before tax      
Hedging reserve, before tax, beginning balance (674) 6,636 8,584
Movement recognized in other comprehensive income, hedging reserve, before tax      
Exchange differences on hedged foreign exchange risks 192 (487) (3,602)
Reclassified to profit or loss (344) 702 1,654
Movement recognized in other comprehensive income (152) 215 (1,948)
Reclassified   (7,525)  
Hedging reserve, before tax, ending balance £ (826) £ (674) £ 6,636