Special Charges (Schedule Of Restructuring Reserve) (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Acquisition-related costs	$ 1,148,000	$ 1,439,000	$ 2,760,000	$ 3,335,000
Impairment Charges And Other Impacts	983,000	0	2,331,000	1,345,000
Special Charges [Member]
Restructuring Cost and Reserve [Line Items]
Acquisition-related costs		0		1,100,000
Business Combination, Integration Related Costs	600,000	1,400,000	1,000,000	2,200,000
Recovery Aro [Member]
Restructuring Cost and Reserve [Line Items]
Impairment Charges And Other Impacts	600,000	0	1,900,000	800,000
Fiscal 2013 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			0
Accruals and adjustments			11,338,000
Cash payments			(5,460,000)
Foreign exchange			36,000
Ending balance	5,914,000		5,914,000
Fiscal 2013 Restructuring Plan [Member] | Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			0
Accruals and adjustments			6,421,000
Cash payments			(4,559,000)
Foreign exchange			14,000
Ending balance	1,876,000		1,876,000
Fiscal 2013 Restructuring Plan [Member] | Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			0
Accruals and adjustments			4,917,000
Cash payments			(901,000)
Foreign exchange			22,000
Ending balance	4,038,000		4,038,000
Fiscal 2012 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			7,777,000
Accruals and adjustments			1,224,000
Cash payments			(5,818,000)
Foreign exchange			(2,000)
Ending balance	3,181,000		3,181,000
Fiscal 2012 Restructuring Plan [Member] | Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			4,422,000
Accruals and adjustments			1,242,000
Cash payments			(4,839,000)
Foreign exchange			(61,000)
Ending balance	764,000		764,000
Fiscal 2012 Restructuring Plan [Member] | Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance			3,355,000
Accruals and adjustments			(18,000)
Cash payments			(979,000)
Foreign exchange			59,000
Ending balance	2,417,000		2,417,000
Acquisition of EasyLink Services International Corporation [Member] | Special Charges [Member]
Restructuring Cost and Reserve [Line Items]
Acquisition-related costs	$ 600,000		$ 1,800,000