Annual report pursuant to Section 13 and 15(d)

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

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STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Schedule of Share-based Compensation by Type of Award) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Share-based compensation by type of award:      
Total share-based compensation expense $ 13,459 $ 15,139 $ 13,737
Stock Options [Member]
     
Share-based compensation by type of award:      
Total share-based compensation expense 826 1,681 2,622
Restricted Stock [Member]
     
Share-based compensation by type of award:      
Total share-based compensation expense 11,356 11,630 9,053
Stock Purchase Plan [Member]
     
Share-based compensation by type of award:      
Total share-based compensation expense $ 1,277 $ 1,828 $ 2,062