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, 2018
Jun. 30, 2017
Jun. 30, 2016
Components of purchased intangible assets      
Gross Carrying Amount $ 239,192 $ 234,192  
Accumulated Amortization and Impairment 219,859 215,229  
Total 19,333 18,963  
Other intangible assets, amortization expense 4,600 3,000 $ 7,600
Existing technology      
Components of purchased intangible assets      
Gross Carrying Amount 160,859 157,259  
Accumulated Amortization and Impairment 144,202 140,346  
Total $ 16,657 16,913  
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 20,993  
Accumulated Amortization and Impairment 20,060 19,902  
Total 933 1,091  
Customer relationships      
Components of purchased intangible assets      
Gross Carrying Amount 56,680 55,680  
Accumulated Amortization and Impairment 55,136 54,959  
Total $ 1,544 721  
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 $ 660 260  
Accumulated Amortization and Impairment 461 22  
Total $ 199 $ 238  
Backlog | Maximum      
Components of purchased intangible assets      
Range of Useful Lives 1 year