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 $)
 3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Jun. 30, 2013
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]          
2014 (remaining 3 months) $ 4,291,000   $ 4,291,000    
2015 15,802,000   15,802,000    
2016 7,564,000   7,564,000    
2017 2,806,000   2,806,000    
2018 1,525,000   1,525,000    
Components of purchased intangible assets          
Gross Carrying Amount 291,479,000   291,479,000   282,080,000
Accumulated Amortization and Impairment 259,491,000   259,491,000   247,565,000
Total 31,988,000   31,988,000   34,515,000
Intangible assets, amortization expense 3,500,000 4,500,000 11,900,000 16,300,000  
Existing technology
          
Components of purchased intangible assets          
Gross Carrying Amount 141,659,000   141,659,000   133,659,000
Accumulated Amortization and Impairment 124,469,000   124,469,000   119,106,000
Total 17,190,000   17,190,000   14,553,000
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    
Patents
          
Components of purchased intangible assets          
Gross Carrying Amount 57,648,000   57,648,000   57,648,000
Accumulated Amortization and Impairment 53,576,000   53,576,000   51,068,000
Total 4,072,000   4,072,000   6,580,000
Patents | Minimum
          
Components of purchased intangible assets          
Range of Useful Lives     6 years    
Patents | Maximum
          
Components of purchased intangible assets          
Range of Useful Lives     13 years    
Trade name/Trademark
          
Components of purchased intangible assets          
Gross Carrying Amount 19,893,000   19,893,000   19,893,000
Accumulated Amortization and Impairment 17,052,000   17,052,000   15,928,000
Total 2,841,000   2,841,000   3,965,000
Trade name/Trademark | Minimum
          
Components of purchased intangible assets          
Range of Useful Lives     4 years    
Trade name/Trademark | Maximum
          
Components of purchased intangible assets          
Range of Useful Lives     10 years    
Customer relationships
          
Components of purchased intangible assets          
Gross Carrying Amount 54,680,000   54,680,000   54,680,000
Accumulated Amortization and Impairment 48,194,000   48,194,000   45,263,000
Total 6,486,000   6,486,000   9,417,000
Customer relationships | Minimum
          
Components of purchased intangible assets          
Range of Useful Lives     6 years    
Customer relationships | Maximum
          
Components of purchased intangible assets          
Range of Useful Lives     7 years    
Other
          
Components of purchased intangible assets          
Gross Carrying Amount 17,599,000   17,599,000   16,200,000
Accumulated Amortization and Impairment 16,200,000   16,200,000   16,200,000
Total $ 1,399,000   $ 1,399,000   $ 0
Other | Minimum
          
Components of purchased intangible assets          
Range of Useful Lives     0 years    
Other | Maximum
          
Components of purchased intangible assets          
Range of Useful Lives     1 year