Fair Value Of Financial Instruments (Details) (USD $)	9 Months Ended	12 Months Ended									12 Months Ended
	Mar. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012 Long-Term Asset [Member] Fair Value, Inputs, Level 1 [Member]	Jun. 30, 2011 Long-Term Asset [Member] Fair Value, Inputs, Level 1 [Member]	Jun. 30, 2012 Current Liability [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2011 Current Liability [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2012 Other long-term liabilities [Member] Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2012 Other long-term liabilities [Member] Fair Value, Inputs, Level 2 [Member]	Jun. 30, 2011 Tomorrow Communication Ltd [Member] Y	Jun. 30, 2011 Three Acquisitions [Member] Y	Mar. 31, 2011 High [Member] Tomorrow Communication Ltd [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-COLI assets held in connection with Supplemental Savings Plan					$ 6,123,000	$ 6,514,000
Contingent consideration liability				3,100,000			3,055,000	20,839,000	2,942,000				6,200,000
Interest rate swap agreements		2,196,000								2,196,000
Contingent Consideration Payment Period											1	2
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		(400,000)	(9,600,000)
Business Acquisition Contingent Consideration Payments At Fair Value	$ 20,300,000
Number Of Acquisitions To Which Contingent Consideration Method Of Payments Apply	2