Annual report pursuant to Section 13 and 15(d)

Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details)

v3.5.0.2
Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Purchased Intangible Assets      
Gross Carrying Amount $ 274,180 $ 274,180  
Accumulated Amortization and Impairment 269,849 262,285  
Total 4,331 11,895  
Other intangible assets, amortization expense 7,600 15,800 $ 16,200
Remaining Estimated Annual Amortization Expense [Abstract]      
2017 2,806    
2018 1,525    
Total 4,331 11,895  
Existing technology      
Purchased Intangible Assets      
Gross Carrying Amount 141,659 141,659  
Accumulated Amortization and Impairment 138,160 134,664  
Total 3,499 6,995  
Remaining Estimated Annual Amortization Expense [Abstract]      
Total 3,499 6,995  
Patents      
Purchased Intangible Assets      
Gross Carrying Amount 57,648 57,648  
Accumulated Amortization and Impairment 57,648 56,998  
Total 0 650  
Remaining Estimated Annual Amortization Expense [Abstract]      
Total 0 650  
Trade name/Trademark      
Purchased Intangible Assets      
Gross Carrying Amount 19,893 19,893  
Accumulated Amortization and Impairment 19,743 18,899  
Total 150 994  
Remaining Estimated Annual Amortization Expense [Abstract]      
Total 150 994  
Customer relationships      
Purchased Intangible Assets      
Gross Carrying Amount 54,980 54,980  
Accumulated Amortization and Impairment 54,298 51,724  
Total 682 3,256  
Remaining Estimated Annual Amortization Expense [Abstract]      
Total $ 682 $ 3,256  
Minimum | Existing technology      
Purchased Intangible Assets      
Range of useful lives (in years) 4 years    
Minimum | Patents      
Purchased Intangible Assets      
Range of useful lives (in years) 6 years    
Minimum | Trade name/Trademark      
Purchased Intangible Assets      
Range of useful lives (in years) 4 years    
Minimum | Customer relationships      
Purchased Intangible Assets      
Range of useful lives (in years) 6 years    
Maximum | Existing technology      
Purchased Intangible Assets      
Range of useful lives (in years) 7 years    
Maximum | Patents      
Purchased Intangible Assets      
Range of useful lives (in years) 13 years    
Maximum | Trade name/Trademark      
Purchased Intangible Assets      
Range of useful lives (in years) 10 years    
Maximum | Customer relationships      
Purchased Intangible Assets      
Range of useful lives (in years) 7 years