The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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Financial risk management - Liquidity risk (Details) - GBP (£)	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Details of liquidity risk
Cash and cash equivalents	£ 76,019,000	£ 121,223,000	£ 110,658,000	£ 51,539,000
Within 1 year
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	340,355,000	320,457,000
Financial liabilities, undiscounted cash flows	337,030,000	319,163,000
Within 1 year \| Trade and other payables excluding social security and other taxes
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	216,555,000	198,693,000
Within 1 year \| Borrowings
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	121,835,000	120,091,000
Within 1 year \| Lease liabilities
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	1,965,000	1,673,000
Within 1 year \| Cash outflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	847,000
Within 1 year \| Cash inflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	(4,172,000)	(1,294,000)
Between 1 and 2 years
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	110,876,000	76,592,000
Financial liabilities, undiscounted cash flows	111,389,000	75,256,000
Between 1 and 2 years \| Trade and other payables excluding social security and other taxes
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	84,851,000	56,418,000
Between 1 and 2 years \| Borrowings
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	24,883,000	19,660,000
Between 1 and 2 years \| Lease liabilities
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	1,142,000	514,000
Between 1 and 2 years \| Cash outflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	531,000
Between 1 and 2 years \| Cash inflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	(18,000)	(1,336,000)
Between 2 and 5 years
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	487,651,000	107,521,000
Financial liabilities, undiscounted cash flows	488,404,000	107,458,000
Between 2 and 5 years \| Trade and other payables excluding social security and other taxes
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	90,720,000	49,294,000
Between 2 and 5 years \| Borrowings
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	394,092,000	57,979,000
Between 2 and 5 years \| Lease liabilities
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	2,839,000	248,000
Between 2 and 5 years \| Cash outflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	865,000
Between 2 and 5 years \| Cash inflow
Contractual undiscounted cash flows including interest
Derivative financial liabilities, undiscounted cash flows	(113,000)	(63,000)
Later than 5 years
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	197,877,000	555,965,000
Financial liabilities, undiscounted cash flows	197,877,000	555,965,000
Later than 5 years \| Borrowings
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	190,177,000	552,422,000
Later than 5 years \| Lease liabilities
Contractual undiscounted cash flows including interest
Non-derivative financial liabilities, undiscounted cash flows	£ 7,700,000	£ 3,543,000