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Acquired Developed Technology and Other Intangibles (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Mar. 30, 2013
Mar. 31, 2012
Jun. 30, 2012
Sep. 29, 2012
CCOP CPV Plan (Workforce reduction)
Mar. 30, 2013
CommTest Low Speed Wireline Product Line Exit
Mar. 30, 2013
Acquired developed technology
Jun. 30, 2012
Acquired developed technology
Mar. 30, 2013
Acquired developed technology
CommTest Low Speed Wireline Product Line Exit
Mar. 30, 2013
Other
Jun. 30, 2012
Other
Mar. 30, 2013
Other
CommTest Low Speed Wireline Product Line Exit
Details of acquired intangible assets and other intangibles                          
Gross carrying amount of intangibles $ 818.3   $ 818.3   $ 814.1     $ 573.3 $ 534.8   $ 245.0 $ 279.3  
Accumulated amortization on finite-lived assets (650.3)   (650.3)   (635.3)     (449.3) (398.6)   (201.0) (236.7)  
Net carrying amount of intangibles 168.0   168.0   178.8     124.0 136.2   44.0 42.6  
Amortization related to acquired developed technology and other intangibles                          
Amortization expenses 20.1 19.8 57.5 60.0   2.6 2.2     1.8     0.4
Estimated future amortization expense                          
Remainder of 2013 18.4   18.4                    
2014 50.5   50.5                    
2015 43.1   43.1                    
2016 22.3   22.3                    
2017 19.0   19.0                    
Thereafter 14.7   14.7                    
Net carrying amount of intangibles $ 168.0   $ 168.0   $ 178.8     $ 124.0 $ 136.2   $ 44.0 $ 42.6