Quarterly report pursuant to Section 13 or 15(d)

STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Schedule of Share-based Compensation) (Details)

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STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Schedule of Share-based Compensation) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Share-based compensation:    
Share-based compensation $ 3,068 $ 3,356
Cost of revenue [Member]
   
Share-based compensation:    
Share-based compensation 414 528
Research and development [Member]
   
Share-based compensation:    
Share-based compensation 780 868
Sales and marketing [Member]
   
Share-based compensation:    
Share-based compensation 910 1,074
General and administrative [Member]
   
Share-based compensation:    
Share-based compensation $ 964 $ 886