Quarterly report pursuant to Section 13 or 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
 3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Components of purchased intangible assets          
Gross Carrying Amount $ 234,192   $ 234,192   $ 234,192
Accumulated Amortization and Impairment 217,629   217,629   215,229
Total 16,563   16,563   18,963
Other intangible assets, amortization expense 1,200 $ 500 2,400 $ 1,800  
Existing technology          
Components of purchased intangible assets          
Gross Carrying Amount 157,259   157,259   157,259
Accumulated Amortization and Impairment 142,459   142,459   140,346
Total 14,800   $ 14,800   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   20,993
Accumulated Amortization and Impairment 19,981   19,981   19,902
Total 1,012   1,012   1,091
Customer relationships          
Components of purchased intangible assets          
Gross Carrying Amount 55,680   55,680   55,680
Accumulated Amortization and Impairment 55,036   55,036   54,959
Total 644   $ 644   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 260   $ 260   260
Accumulated Amortization and Impairment 153   153   22
Total $ 107   $ 107   $ 238
Backlog | Maximum          
Components of purchased intangible assets          
Range of Useful Lives     1 year