Business Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended		12 Months Ended	1 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 Interest and Other Income Expense [Member]	May 21, 2012 Jadestone Group Ab	May 31, 2012 Jadestone Group Ab	Jun. 30, 2013 Jadestone Group Ab	Jun. 30, 2012 Phantom Efx	Jun. 15, 2012 Phantom Efx	Jun. 30, 2013 Phantom Efx
Business Acquisition [Line Items]
Business acquisition, percentage outstanding stock acquired			100.00%				100.00%
Business acquisition, total consideration paid	$ 5.8		$ 2.6		$ 2.8		$ 13.8	$ 3.0
Business acquisition, additional consideration payable	17.2		6.7				10.5
Business acquisition, additional consideration payable period				2 years		3 years
Business acquisition, aggregate purchase price	33.6
Business acquisition, purchase price allocated to tangible assets	1.9
Business acquisition, purchase price allocated to identifiable intangibles assets	7.2
Business acquisition, purchase price allocated to goodwill	27.5
Business acquisition, purchase price allocated to total liabilities	20.2
Business acquisition gain loss recognized		1.0
Business acquisition, increase in goodwill	$ 0.3