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
Sep. 30, 2011
Sep. 30, 2010
Jun. 30, 2011
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2012 (remaining 9 months) $ 22,276,000
2013 20,957,000
2014 15,537,000
2015 12,771,000
2016 5,582,000
2017 and thereafter 826,000
Total 77,949,000
Components of purchased intangible assets
Gross Carrying Amount 283,125,000 283,125,000
Accumulated Amortization and Impairment 205,176,000 197,223,000
Net Amount 77,949,000 85,902,000
Other intangible assets, amortization expense 8,000,000 8,400,000
Existing technology
Components of purchased intangible assets
Gross Carrying Amount 134,561,000 134,561,000
Accumulated Amortization and Impairment 98,603,000 94,172,000
Net Amount 35,958,000 40,389,000
Range of Useful Lives, Minimum (in years) 4
Range of Useful Lives, Maximum (in years) 7
Customer relationships
Components of purchased intangible assets
Gross Carrying Amount 54,823,000 54,823,000
Accumulated Amortization and Impairment 35,056,000 33,565,000
Net Amount 19,767,000 21,258,000
Range of Useful Lives, Minimum (in years) 6
Range of Useful Lives, Maximum (in years) 7
Patents
Components of purchased intangible assets
Gross Carrying Amount 57,648,000 57,648,000
Accumulated Amortization and Impairment 42,185,000 40,591,000
Net Amount 15,463,000 17,057,000
Range of Useful Lives, Minimum (in years) 6
Range of Useful Lives, Maximum (in years) 13
Trade name/Trademark
Components of purchased intangible assets
Gross Carrying Amount 19,893,000 19,893,000
Accumulated Amortization and Impairment 13,303,000 12,907,000
Net Amount 6,590,000 6,986,000
Range of Useful Lives, Minimum (in years) 4
Range of Useful Lives, Maximum (in years) 10
Other
Components of purchased intangible assets
Gross Carrying Amount 16,200,000 16,200,000
Accumulated Amortization and Impairment 16,029,000 15,988,000
Net Amount $ 171,000 $ 212,000
Range of Useful Lives, Minimum (in years) 0
Range of Useful Lives, Maximum (in years) 1
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