Acquisitions (Details) (USD $)			12 Months Ended						12 Months Ended					12 Months Ended
	Jun. 30, 2012		Jun. 30, 2012 Intellectual property [Member] years	Jun. 30, 2012 Customer relationships [Member] years	Jun. 30, 2012 Trademark [Member] years	Jun. 30, 2012 Sensor Dynamics [Member]		Jul. 18, 2011 Sensor Dynamics [Member]	Jun. 30, 2012 Sensor Dynamics [Member] Intellectual property [Member] years	Jun. 30, 2012 Sensor Dynamics [Member] Customer relationships [Member] years	Jun. 30, 2012 Sensor Dynamics [Member] Trademark [Member] years	Jun. 30, 2012 Other Acquisition [Member]		Jun. 30, 2012 Other Acquisition [Member] Intellectual property [Member] years	Jun. 30, 2012 Other Acquisition [Member] Customer relationships [Member] years	Jun. 30, 2012 Other Acquisition [Member] Trademark [Member] years
Business Acquisition, Purchase Price Allocation [Abstract]
Tangible assets	$ 19,851,000					$ 18,692,000						$ 1,159,000
Debt assumed	(29,078,000)					(29,078,000)						0
Business Acquisition Purchase Price Allocation Other Liabilities Assumed	(42,288,000)					(37,559,000)						(4,729,000)
Net liabilities assumed	(51,515,000)					(47,945,000)						(3,570,000)
Amortizable intangible assets	38,740,000		31,740,000	6,600,000	400,000	20,900,000			16,400,000	4,100,000	400,000	17,840,000		15,340,000	2,500,000	0
In-process research and development (IPR&D)	19,600,000					19,600,000						0
Goodwill	168,986,000	[1]				130,594,000	[1]					38,392,000	[1]
Total purcahse price	175,811,000	[1]				123,149,000	[1]					52,662,000	[1]
Fair value of contingent consideration												11,400,000
Total cash consideration								123,100,000				41,300,000
Acquired finite-lived intangible asset, Weighted Average Useful Life (in Years)			8.1	5.5	3				7	7	3			9.2	3	0.0
Business acquisition contingent consideration potential cash payment												$ 16,000,000

[1] Includes $11.4 million of contingent consideration relating to the other acquisitions discussed further below.