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Deferred tax - Analysis of the deferred tax (Details) - GBP (£) £ in Thousands	Dec. 31, 2018	Jun. 30, 2018	[1]	Dec. 31, 2017	[1]	Jun. 30, 2017	[1]
Analysis of deferred tax
Deferred tax assets	£ (57,636)	£ (63,332)		£ (77,500)		£ (141,485)
Deferred tax liabilities	33,302	29,134		35,801		21,536
Net deferred tax asset	(24,334)	(34,198)		(41,699)		£ (119,949)
US
Analysis of deferred tax
Deferred tax assets	(57,636)	(63,332)		(77,500)
UK
Analysis of deferred tax
Deferred tax liabilities	£ 33,302	£ 29,134		£ 35,801
[1] Comparative amounts have been restated - see note 34 to the interim consolidated financial statements for further details.

X

- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

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- Definition

The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

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The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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