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 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2013
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]          
2014 (remaining 6 months) $ 6,950,000   $ 6,950,000    
2015 12,752,000   12,752,000    
2016 5,564,000   5,564,000    
2017 806,000   806,000    
2018 26,000   26,000    
Components of purchased intangible assets          
Gross Carrying Amount 282,080,000   282,080,000   282,080,000
Accumulated Amortization and Impairment 255,982,000   255,982,000   247,565,000
Total 26,098,000   26,098,000   34,515,000
Intangible assets, amortization expense 3,900,000 4,600,000 8,400,000 11,800,000  
Existing technology
         
Components of purchased intangible assets          
Gross Carrying Amount 133,659,000   133,659,000   133,659,000
Accumulated Amortization and Impairment 122,848,000   122,848,000   119,106,000
Total 10,811,000   10,811,000   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 52,740,000   52,740,000   51,068,000
Total 4,908,000   4,908,000   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 16,677,000   16,677,000   15,928,000
Total 3,216,000   3,216,000   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 47,517,000   47,517,000   45,263,000
Total 7,163,000   7,163,000   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 16,200,000   16,200,000   16,200,000
Accumulated Amortization and Impairment 16,200,000   16,200,000   16,200,000
Total $ 0   $ 0   $ 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