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 9 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Jun. 30, 2017
Components of purchased intangible assets          
Gross Carrying Amount $ 234,192   $ 234,192   $ 234,192
Accumulated Amortization and Impairment 218,816   218,816   215,229
Total 15,376   15,376   18,963
Other intangible assets, amortization expense 1,200 $ 500 3,600 $ 2,300  
Existing technology          
Components of purchased intangible assets          
Gross Carrying Amount 157,259   157,259   157,259
Accumulated Amortization and Impairment 143,516   143,516   140,346
Total 13,743   $ 13,743   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 20,021   20,021   19,902
Total 972   972   1,091
Customer relationships          
Components of purchased intangible assets          
Gross Carrying Amount 55,680   55,680   55,680
Accumulated Amortization and Impairment 55,061   55,061   54,959
Total 619   $ 619   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 218   218   22
Total $ 42   $ 42   $ 238
Backlog | Maximum          
Components of purchased intangible assets          
Range of Useful Lives     1 year