Restructuring and Related Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended				3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended				9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Jun. 30, 2012	Mar. 30, 2013 CommTest Operation and Repair Outsourcing Restructuring Plan employee	Mar. 30, 2013 CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 CommTest Manufacturing Support Consolidation Plan employee	Mar. 30, 2013 Other plans	Mar. 30, 2013 CommTest Market Rebalancing Restructuring Plan	Apr. 02, 2011 Plans Prior to Fiscal 2011 item	Mar. 30, 2013 Plans Prior to Fiscal 2011	Mar. 30, 2013 Workforce Reduction CCOP Outsourcing Plan (Workforce reduction) employee	Mar. 30, 2013 Workforce Reduction CCOP Outsourcing Plan (Workforce reduction)	Mar. 30, 2013 Workforce Reduction CommTest Wireless Business Restructuring Plan (Workforce reduction) employee	Mar. 30, 2013 Workforce Reduction CCOP CPV Plan (Workforce reduction) employee	Mar. 30, 2013 Workforce Reduction CCOP CPV Plan (Workforce reduction) employee	Mar. 30, 2013 Workforce Reduction CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 Workforce Reduction CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 Workforce Reduction OSP Business Consolidation Plan employee	Mar. 30, 2013 Workforce Reduction OSP Business Consolidation Plan	Mar. 30, 2013 Workforce Reduction CommTest Manufacturing Support Consolidation Plan	Mar. 30, 2013 Workforce Reduction CommTest Manufacturing Support Consolidation Plan employee	Mar. 30, 2013 Workforce Reduction CommTest Market Rebalancing Restructuring Plan	Mar. 30, 2013 Workforce Reduction CommTest Germany Restructuring Plan	Mar. 30, 2013 Facilities and Equipment CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 Facilities and Equipment CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 Lease Costs CommTest Operation and Repair Outsourcing Restructuring Plan	Mar. 30, 2013 Lease Costs CommTest Germantown Restructuring Plan	Jun. 30, 2012 Lease Costs CommTest Germantown Restructuring Plan	Mar. 30, 2013 Lease Costs CommTest Market Rebalancing Restructuring Plan	Mar. 30, 2013 Ottawa Lease Exit Costs	Mar. 30, 2013 Ottawa Lease Exit Costs
Restructuring and Related Charges
Number of employees expected to be reduced						128		77					46		42		10			15
Number of positions eliminated as of the balance sheet date						117							4		40	9				15			62
Contractual obligations under the operating lease, net of sublease income, fair value	$ 4.0		$ 4.0		$ 4.6	$ 0.5	$ 0.5			$ 0.7		$ 2.5													$ 1.7				$ 0.5
Summary of various restructuring plans
Accrual balance at the beginning of the period			12.6				3.9		0.2	1.1		3.6							3.9		0.8		2.5	0.1					0.5	0.5	1.0		4.6
Restructuring and related charges	0.4	2.0	6.1	7.5		(0.1)	2.6					0.1	0.9	0.9	1.8	(0.1)	0.5	(0.2)	1.3			(0.3)	0.2			0.1	0.8	0.5				0.1	0.3
Cash Settlements			(13.1)				(5.8)		(0.2)	(0.4)		(1.3)		(0.2)	(1.7)		(0.4)		(4.6)		(0.8)		(2.3)	(0.1)			(0.8)	(0.4)			(0.3)		(0.9)
Non-cash settlements and other adjustments			0.5				0.4					0.1																0.4
Accrual balance at the end of the period	6.1		6.1			1.1	1.1			0.7		2.5	0.7	0.7	0.1	0.1	0.1	0.6	0.6			0.4	0.4					0.5	0.5	0.5	0.7	4.0	4.0
Amount of reduced accrual for severance and employee benefits						$ 0.2										$ 0.1						$ 0.3
Number of facilities exited in current period											3