Fair Value Of Financial Instruments (Narrative) (Detail) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Key assumptions in applying the income approach for earnout arrangements		0.93%
Percentage of probability of achieving the financial targets under the earnout arrangements		100.00%
Transfers in and out of Levels 1 and 2	$ 0	$ 0