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SOFTWARE DEVELOPMENT COSTS AND LICENSES (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Capitalized software development costs and licenses      
Software development costs and licenses, Current $ 198,955 $ 211,224  
Software development costs and licenses, Non-current 95,241 104,755  
Software development costs and licenses related to titles that have not been released 270,488 313,090  
Amortization and impairment of software development costs and licenses      
Amortization and impairment of software development costs and licenses, gross 240,808 155,844 154,506
Less: Portion representing stock-based compensation (10,060) (5,144) (10,695)
Amortization and impairment, net of stock-based compensation 230,748 150,700 143,811
Software development costs, internally developed
     
Capitalized software development costs and licenses      
Software development costs and licenses, Current 178,297 154,557  
Software development costs and licenses, Non-current 38,592 84,315  
Software development costs, externally developed
     
Capitalized software development costs and licenses      
Software development costs and licenses, Current 10,469 53,542  
Software development costs and licenses, Non-current 53,649 14,440  
Licenses
     
Capitalized software development costs and licenses      
Software development costs and licenses, Current 10,189 3,125  
Software development costs and licenses, Non-current $ 3,000 $ 6,000