The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The interest rate on borrowings. [Refer: Borrowings]

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The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

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The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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The non-current portion of non-current borrowings. [Refer: Borrowings]

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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

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The minimum amount of consolidated profit or loss (EBITDA) to be maintained.

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No definition available.

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The concept pertains to percentage aggregate principal amount debt redemption.

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Period of time for financial maintenance covenant testing

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The amount of unamortized issue costs on borrowings

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No definition available.

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Borrowings (Details)	12 Months Ended
Borrowings (Details)	Jun. 30, 2026 GBP (£)	Jun. 30, 2026 USD ($)	May 31, 2026 USD ($)	Jun. 30, 2025 GBP (£)	Jun. 30, 2025 USD ($)
Disclosure of detailed information about borrowings
Total borrowings	£ 688,954,000			£ 636,974,000
Non-current borrowings	577,554,000			471,855,000
Current borrowings	111,400,000			165,119,000
Minimum amount of consolidated profit or loss (EBITDA) to be maintained	£ 125,000,000
Period of time for financial maintenance covenant testing	12 months
Senior secured notes
Disclosure of detailed information about borrowings
Total borrowings	£ 408,942,000			308,914,000
Non-current borrowings	408,942,000			308,914,000
Unamortized issue costs on borrowings	£ 5,454,000			1,098,000
Principal amount / Notional amount \| $		$ 550,000,000	$ 425,000,000		$ 425,000,000
Senior secured notes \| Minimum
Disclosure of detailed information about borrowings
Debt redemption, percentage of aggregate principal amount	5.00%
Senior secured notes \| Maximum
Disclosure of detailed information about borrowings
Debt redemption, percentage of aggregate principal amount	100.00%
Senior secured notes \| Fixed interest rate
Disclosure of detailed information about borrowings
Borrowings, interest rate	5.36%	5.36%
Secured term loan facility
Disclosure of detailed information about borrowings
Total borrowings	£ 168,612,000			162,941,000
Non-current borrowings	168,612,000			162,941,000
Unamortized issue costs on borrowings	£ 918,000			1,186,000
Principal amount / Notional amount \| $		$ 225,000,000			$ 225,000,000
Secured term loan facility \| Floating interest rate
Disclosure of detailed information about borrowings
Borrowings, interest rate basis	SOFR
Secured term loan facility \| Floating interest rate \| Minimum
Disclosure of detailed information about borrowings
Adjustment to interest rate basis	1.25%	1.25%
Secured term loan facility \| Floating interest rate \| Maximum
Disclosure of detailed information about borrowings
Adjustment to interest rate basis	1.75%	1.75%
Revolving facility
Disclosure of detailed information about borrowings
Total borrowings	£ 110,000,000			160,000,000
Principal amount / Notional amount	400,000,000
Undrawn borrowing facilities	290,000,000			140,000,000
Accrued interest on senior secured notes and revolving credit facility
Disclosure of detailed information about borrowings
Total borrowings	£ 1,400,000			£ 5,119,000