Acquisitions (Details) (USD $)	6 Months Ended			12 Months Ended						12 Months Ended					12 Months Ended
	Dec. 29, 2012	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	Jun. 30, 2012 Other Acquisitions [Member] acquisitions
Business Acquisition [Line Items]
business acquisiton, cash paid for contingent consideration1	$ 7,500,000
Business Acquisition, Contingent Consideration, Potential Cash Payment	16,900,000
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
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					123,149,000						52,662,000
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
Number of businesses acquired																		3

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