Goodwill - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Goodwill [Line Items]
Accumulated amount of goodwill impairment	$ 330,000,000
Goodwill	234,342,000	180,811,000	119,357,000
Increase in goodwill	59,280,000	79,757,000
Martin Professional A/S [Member]
Goodwill [Line Items]
Increase in goodwill	56,700,000
iOnRoad Technologies Ltd [member]
Goodwill [Line Items]
Increase in goodwill	2,000,000
Interchain Solution Private Limited [Member]
Goodwill [Line Items]
Increase in goodwill	$ 600,000