Segment Information and Geographic Data - Additional Information (Detail)	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Segment Reporting Disclosure [Line Items]
Number of reportable segments	5	5	5
Sales to an individual customer	No sales to an individual customer accounted for more than 10%	No sales to an individual customer accounted for more than 10%	No sales to an individual customer accounted for more than 10%