Cash Flow - Cash Flow Statement Adjustments (Details) - GBP (£) £ in Thousands	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Adjustments
Depreciation, amortisation and impairment of non-financial assets	£ 32,927	£ 28,969	£ 24,447
Unrealised foreign exchange loss / (gain)	5,441	(9,876)	6,742
Interest income	(3,506)	(184)	(84)
Fair value movement of financial liabilities	(11,828)	842	302
Interest expense	3,469	2,014	2,081
Net gain on disposal of non-current assets (tangibles and intangibles)	(45)	(73)	(36)
Share-based compensation expense	31,058	35,005	24,427
Hyperinflation effect (gain) / loss	(386)	17	189
Research and development tax credit	(5,027)	(2,211)	(2,642)
Loss on derecognition of right-of-use assets sub-leased	0	132	0
Net gain on disposal of right-of-use asset	(1)	(187)	(56)
Fair value movement of financial assets	(2)	(7)	(17)
Grant income	(2,935)	(642)	(503)
Total adjustments	49,165	53,799	54,850
Net changes in working capital
Increase in trade and other receivables	(3,937)	(37,006)	(19,505)
(Decrease)/Increase in trade and other payables	(12,136)	15,236	(1,855)
Net changes in working capital	£ (16,073)	£ (21,770)	£ (21,360)

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Adjustments For Research And Development Tax Credit

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Adjustments For Sublease Discount Unwind

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Adjustments for Government Grant Income

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Gains (Losses) On Disposals Of Right-Of-Use Asset

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Loss From Derecognition Of Subleased Right-of-Use Assets

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Net changes in working capital [Abstract]

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Adjustments for decrease (increase) in trade and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other receivables; Profit (loss)]

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Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Impairment loss; Depreciation and amortisation expense; Impairment loss (reversal of impairment loss) recognised in profit or loss; Profit (loss)]

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Adjustments for fair value losses (gains) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)]

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Adjustments for interest expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Interest expense; Profit (loss)]

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Adjustments for interest income expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Interest income; Profit (loss)]

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Adjustments for losses (gains) on disposal of non-current assets to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Non-current assets; Profit (loss)]

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Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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Adjustments for unrealised foreign exchange losses (gains) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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Adjustments, other than changes in working capital, to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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The increase (decrease) in working capital.

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