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

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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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Borrowings (Details)	12 Months Ended
Borrowings (Details)	Jun. 30, 2023 GBP (£)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 GBP (£)	Jun. 30, 2022 USD ($)
Disclosure of detailed information about borrowings
Total borrowings	£ 613,296,000		£ 636,122,000
Non-current borrowings	507,335,000		530,365,000
Current borrowings	105,961,000		105,757,000
Minimum amount of consolidated profit or loss (EBITDA) to be maintained	£ 65,000,000
Period of time for financial maintenance covenant testing	12 months
Senior secured notes
Disclosure of detailed information about borrowings
Total borrowings	£ 332,112,000		347,173,000
Non-current borrowings	332,112,000		347,173,000
Unamortized issue costs on borrowings	2,113,000		2,591,000
Principal amount / Notional amount \| $		$ 425,000,000		$ 425,000,000
Secured term loan facility
Disclosure of detailed information about borrowings
Total borrowings	175,223,000		183,192,000
Non-current borrowings	175,223,000		183,192,000
Unamortized issue costs on borrowings	1,720,000		1,979,000
Principal amount / Notional amount \| $		$ 225,000,000		$ 225,000,000
Revolving facilities
Disclosure of detailed information about borrowings
Total borrowings	100,000,000		100,000,000
Principal amount / Notional amount	300,000,000
Undrawn borrowing facilities	200,000,000		200,000,000
Accrued interest on senior secured notes and revolving credit facilities
Disclosure of detailed information about borrowings
Total borrowings	£ 5,961,000		£ 5,757,000
Fixed interest rate \| Senior secured notes
Disclosure of detailed information about borrowings
Borrowings, interest rate	3.79%	3.79%
Floating interest rate \| Secured term loan facility
Disclosure of detailed information about borrowings
Borrowings, interest rate basis	SOFR
4 April 2025 \| Revolving facilities
Disclosure of detailed information about borrowings
Principal amount / Notional amount	£ 150,000,000
Minimum \| Senior secured notes
Disclosure of detailed information about borrowings
Debt redemption, percentage of aggregate principal amount	5.00%
Minimum \| Floating interest rate \| Secured term loan facility
Disclosure of detailed information about borrowings
Adjustment to interest rate basis	1.25%	1.25%
Maximum \| Senior secured notes
Disclosure of detailed information about borrowings
Debt redemption, percentage of aggregate principal amount	100.00%
Maximum \| Floating interest rate \| Secured term loan facility
Disclosure of detailed information about borrowings
Adjustment to interest rate basis	1.75%	1.75%