Annual report pursuant to Section 13 and 15(d)

INTANGIBLE ASSETS AND GOODWILL (Schedule of Intangible Assets) (Details)

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INTANGIBLE ASSETS AND GOODWILL (Schedule of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Intangible Assets Excluding Goodwill [Line Items]    
Gross Amount $ 259,394 $ 290,390
Accumulated Amortization (255,483) (277,577)
Net Amount 3,911 12,813
Purchased technology [Member]
    
Intangible Assets Excluding Goodwill [Line Items]    
Gross Amount 179,475 180,613
Accumulated Amortization (178,348) (178,168)
Net Amount 1,127 2,445
Trademarks [Member]
    
Intangible Assets Excluding Goodwill [Line Items]    
Gross Amount 3,900 3,900
Accumulated Amortization (3,900) (3,900)
Net Amount      
Customer lists [Member]
    
Intangible Assets Excluding Goodwill [Line Items]    
Gross Amount 76,019 105,719
Accumulated Amortization (73,235) (95,509)
Net Amount 2,784 10,210
In-process research and development [Member]
    
Intangible Assets Excluding Goodwill [Line Items]    
Gross Amount    158
Accumulated Amortization      
Net Amount    $ 158