Related Party Transactions - Additional Information (Detail) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2009 Y	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	Jun. 30, 2010 EUR (€) Y	Jun. 30, 2013 EUR (€)
Related Party Transactions [Abstract]
Related party transactions duration of agreement, years	3				5
Amount of transactions with related party during the financial reporting period					€ 6.0
Current asset, related party		7.7				5.8
Total expenses for engineering and software development services		$ 41.2	$ 32.6	$ 24.9