Accumulated Other Comprehensive (Loss) Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of June 30, 2014	$ (82,741)	[1]
Movement in foreign currency translation reserve	(21,159)
Unrealized loss on asset available for sale, net of tax of $88	(226)		(255)
Balance as of September 30, 2014	(104,126)
Unrealized loss on asset available for sale, tax	88
Reclassification from accumulated other comprehensive loss	0		0
Foreign Currency Translation Reserve [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of June 30, 2014	(83,359)
Movement in foreign currency translation reserve	(21,159)
Balance as of September 30, 2014	(104,518)
Net Unrealized Income (Loss) On Assets Available For Sale, Net Of Tax [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of June 30, 2014	618
Unrealized loss on asset available for sale, net of tax of $88	(226)
Balance as of September 30, 2014	$ 392

[1] Derived from audited financial statements