Annual report pursuant to Section 13 and 15(d)

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

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Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Components of purchased intangible assets      
Gross Carrying Amount $ 234,192 $ 216,532  
Accumulated Amortization and Impairment 215,229 212,201  
Total 18,963 4,331  
Other intangible assets, amortization expense 3,000 7,600 $ 15,800
Existing technology      
Components of purchased intangible assets      
Gross Carrying Amount 157,259 141,659  
Accumulated Amortization and Impairment 140,346 138,160  
Total $ 16,913 3,499  
Existing technology | Minimum      
Components of purchased intangible assets      
Range of Useful Lives 4 years    
Existing technology | Maximum      
Components of purchased intangible assets      
Range of Useful Lives 7 years    
Trade name/Trademark      
Components of purchased intangible assets      
Range of Useful Lives 7 years    
Gross Carrying Amount $ 20,993 19,893  
Accumulated Amortization and Impairment 19,902 19,743  
Total 1,091 150  
Customer relationships      
Components of purchased intangible assets      
Gross Carrying Amount 55,680 54,980  
Accumulated Amortization and Impairment 54,959 54,298  
Total $ 721 682  
Customer relationships | Minimum      
Components of purchased intangible assets      
Range of Useful Lives 7 years    
Customer relationships | Maximum      
Components of purchased intangible assets      
Range of Useful Lives 8 years    
Backlog      
Components of purchased intangible assets      
Gross Carrying Amount $ 260 0  
Accumulated Amortization and Impairment 22 0  
Total $ 238 $ 0  
Backlog | Maximum      
Components of purchased intangible assets      
Range of Useful Lives 1 year