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SEGMENT INFORMATION (Details 2) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Feb. 28, 2013
Nov. 30, 2012
Aug. 31, 2012
May 31, 2012
Feb. 29, 2012
Nov. 30, 2011
Aug. 31, 2011
May 31, 2011
Feb. 28, 2013
Feb. 29, 2012
Feb. 28, 2011
GEOGRAPHIC INFORMATION                      
Sales revenue, net $ 326,042 $ 374,599 $ 287,411 $ 300,211 $ 294,004 $ 338,785 $ 277,420 $ 271,467 $ 1,288,263 $ 1,181,676 $ 777,043
Long-lived assets 928,799       947,187       928,799 947,187 780,073
United States
                     
GEOGRAPHIC INFORMATION                      
Sales revenue, net                 1,014,354 906,884 619,378
Long-lived assets 515,411       525,537       515,411 525,537 358,903
Barbados
                     
GEOGRAPHIC INFORMATION                      
Long-lived assets 398,340       406,213       398,340 406,213 416,180
International
                     
GEOGRAPHIC INFORMATION                      
Sales revenue, net                 273,909 274,812 157,665
Long-lived assets 413,388       421,650       413,388 421,650 421,170
Other international
                     
GEOGRAPHIC INFORMATION                      
Long-lived assets $ 15,048       $ 15,437       $ 15,048 $ 15,437 $ 4,990