Financial risk management - Market risk (Details) € in Thousands, $ in Millions |
12 Months Ended | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2026
GBP (£)
|
Jun. 30, 2026
GBP (£)
€ / £
|
Jun. 30, 2026
GBP (£)
$ / £
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2026
GBP (£)
|
Jun. 30, 2025
GBP (£)
|
Jun. 30, 2025
GBP (£)
€ / £
|
Jun. 30, 2025
GBP (£)
$ / £
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2025
EUR (€)
|
Jun. 30, 2025
GBP (£)
|
Jun. 30, 2024
GBP (£)
|
Jun. 30, 2024
GBP (£)
€ / £
|
Jun. 30, 2024
GBP (£)
$ / £
|
Jun. 30, 2024
USD ($)
|
Jun. 30, 2024
EUR (€)
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2025
EUR (€)
|
Jun. 30, 2023
GBP (£)
|
|
| Details of currency and interest rate risks | ||||||||||||||||||||||
| Revenue from contracts with customers | £ 677,649,000 | £ 666,514,000 | £ 661,755,000 | |||||||||||||||||||
| Forward foreign currency contracts outstanding at the balance sheet date | ||||||||||||||||||||||
| Average exchange rate | 1.151 | 1.3421 | 1.1908 | 1.2972 | 1.1652 | 1.2605 | ||||||||||||||||
| Derivative financial assets | 472,000 | £ 472,000 | £ 472,000 | £ 472,000 | ||||||||||||||||||
| Derivative financial liabilities | (5,069,000) | £ (5,069,000) | £ (5,069,000) | £ (5,069,000) | (6,002,000) | (6,002,000) | (6,002,000) | (6,002,000) | ||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Trade receivables | 132,197,000 | 132,197,000 | 132,197,000 | 132,197,000 | 177,147,000 | 177,147,000 | 177,147,000 | 177,147,000 | ||||||||||||||
| Cash and cash equivalents | 67,246,000 | 67,246,000 | 67,246,000 | 67,246,000 | 86,105,000 | 86,105,000 | 86,105,000 | 86,105,000 | £ 73,549,000 | £ 73,549,000 | £ 73,549,000 | £ 76,019,000 | ||||||||||
| Trade and other payables | (473,976,000) | (473,976,000) | (473,976,000) | (473,976,000) | (564,605,000) | (564,605,000) | (564,605,000) | (564,605,000) | ||||||||||||||
| Borrowings | (688,954,000) | (688,954,000) | (688,954,000) | (688,954,000) | (636,974,000) | (636,974,000) | (636,974,000) | (636,974,000) | ||||||||||||||
| Embedded foreign exchange derivatives | ||||||||||||||||||||||
| Forward foreign currency contracts outstanding at the balance sheet date | ||||||||||||||||||||||
| Derivative financial assets | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||
| Derivative financial liabilities | 0 | £ 0 | 0 | 0 | (127,000) | £ (127,000) | (127,000) | (127,000) | ||||||||||||||
| Buy Euro | Forward foreign exchange contracts | ||||||||||||||||||||||
| Forward foreign currency contracts outstanding at the balance sheet date | ||||||||||||||||||||||
| Average exchange rate | € / £ | 1.117 | 1.111 | ||||||||||||||||||||
| Principal amount / Notional amount | 116,143,000 | £ 116,143,000 | 116,143,000 | 116,143,000 | 147,584,000 | £ 147,584,000 | 147,584,000 | 147,584,000 | € 128,126 | € 163,419 | ||||||||||||
| Derivative financial liabilities | (5,069,000) | (5,069,000) | (5,069,000) | £ (5,069,000) | (5,830,000) | (5,830,000) | (5,830,000) | £ (5,830,000) | ||||||||||||||
| Interest rate risk | ||||||||||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Percentage of reasonably possible change in risk assumption | 1.00% | 1.00% | ||||||||||||||||||||
| Euro | ||||||||||||||||||||||
| Details of currency and interest rate risks | ||||||||||||||||||||||
| Revenue from contracts with customers | € | € 7,400 | € 37,400 | € 63,000 | |||||||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Contract assets - accrued revenue | 1,954,000 | 1,954,000 | 1,954,000 | £ 1,954,000 | 1,205,000 | 1,205,000 | 1,205,000 | £ 1,205,000 | ||||||||||||||
| Trade receivables | 64,562,000 | 64,562,000 | 64,562,000 | 64,562,000 | 67,152,000 | 67,152,000 | 67,152,000 | 67,152,000 | ||||||||||||||
| Cash and cash equivalents | 13,070,000 | 13,070,000 | 13,070,000 | 13,070,000 | 24,415,000 | 24,415,000 | 24,415,000 | 24,415,000 | ||||||||||||||
| Trade and other payables | (200,016,000) | (200,016,000) | (200,016,000) | (200,016,000) | (319,649,000) | (319,649,000) | (319,649,000) | (319,649,000) | ||||||||||||||
| Exposure to foreign currency, net | (120,430,000) | (120,430,000) | (120,430,000) | £ (120,430,000) | (226,877,000) | (226,877,000) | (226,877,000) | £ (226,877,000) | ||||||||||||||
| Euro | Currency risk | ||||||||||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Percentage of reasonably possible change in risk assumption | 10.00% | 10.00% | ||||||||||||||||||||
| Increase (decrease) in post-tax profit due to reasonably possible strengthening of GBP against currency | 8,800,000 | 16,600,000 | ||||||||||||||||||||
| Increase (decrease) in equity due to reasonably possible strengthening of GBP against currency | 8,800,000 | 8,800,000 | 8,800,000 | £ 8,800,000 | 16,600,000 | 16,600,000 | 16,600,000 | £ 16,600,000 | ||||||||||||||
| Increase (decrease) in post-tax profit due to reasonably possible weakening of GBP against currency | (10,800,000) | (20,400,000) | ||||||||||||||||||||
| Increase (decrease) in equity due to reasonably possible weakening of GBP against currency | (10,800,000) | (10,800,000) | (10,800,000) | (10,800,000) | (20,400,000) | (20,400,000) | (20,400,000) | (20,400,000) | ||||||||||||||
| US dollar | ||||||||||||||||||||||
| Details of currency and interest rate risks | ||||||||||||||||||||||
| Revenue from contracts with customers | $ | $ 101.0 | $ 104.7 | $ 93.7 | |||||||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Contract assets - accrued revenue | 469,000 | 469,000 | 469,000 | 469,000 | 469,000 | 469,000 | 469,000 | 469,000 | ||||||||||||||
| Trade receivables | 1,341,000 | 1,341,000 | 1,341,000 | 1,341,000 | 6,244,000 | 6,244,000 | 6,244,000 | 6,244,000 | ||||||||||||||
| Cash and cash equivalents | 7,987,000 | 7,987,000 | 7,987,000 | 7,987,000 | 22,611,000 | 22,611,000 | 22,611,000 | 22,611,000 | ||||||||||||||
| Trade and other payables | (174,000) | (174,000) | (174,000) | (174,000) | (432,000) | (432,000) | (432,000) | (432,000) | ||||||||||||||
| Borrowings | (578,799,000) | (578,799,000) | (578,799,000) | (578,799,000) | (476,948,000) | (476,948,000) | (476,948,000) | (476,948,000) | ||||||||||||||
| Exposure to foreign currency, net | (569,176,000) | (569,176,000) | (569,176,000) | £ (569,176,000) | (448,056,000) | (448,056,000) | (448,056,000) | £ (448,056,000) | ||||||||||||||
| US dollar | Currency risk | ||||||||||||||||||||||
| Foreign currency denominated monetary assets and monetary liabilities | ||||||||||||||||||||||
| Percentage of reasonably possible change in risk assumption | 10.00% | 10.00% | ||||||||||||||||||||
| Increase (decrease) in post-tax profit due to reasonably possible strengthening of GBP against currency | 41,700,000 | 32,800,000 | ||||||||||||||||||||
| Increase (decrease) in equity due to reasonably possible strengthening of GBP against currency | 41,700,000 | 41,700,000 | 41,700,000 | £ 41,700,000 | 32,800,000 | 32,800,000 | 32,800,000 | £ 32,800,000 | ||||||||||||||
| Increase (decrease) in post-tax profit due to reasonably possible weakening of GBP against currency | (51,000,000) | (40,200,000) | ||||||||||||||||||||
| Increase (decrease) in equity due to reasonably possible weakening of GBP against currency | £ (51,000,000) | £ (51,000,000) | £ (51,000,000) | £ (51,000,000) | £ (40,200,000) | £ (40,200,000) | £ (40,200,000) | £ (40,200,000) | ||||||||||||||
| Secured term loan facility and senior secured notes | ||||||||||||||||||||||
| Forward foreign currency contracts outstanding at the balance sheet date | ||||||||||||||||||||||
| Principal amount / Notional amount | $ | $ 775.0 | $ 650.0 | ||||||||||||||||||||