Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation (Details 2)

v2.4.0.6
Stock-Based Employee Compensation (Details 2) (USD $)
12 Months Ended
Feb. 29, 2012
Feb. 28, 2011
Feb. 28, 2010
Restricted Stock Awards [Member]
     
Summary of restricted stock activity      
Number of Nonvested Awards Outstanding, Beginning Balance 1,810,316 1,508,358 460,036
Number of Nonvested Awards Outstanding, Granted 622,092 739,388 1,365,460
Number of Nonvested Awards Outstanding, Vested (529,118) (399,566) (180,641)
Number of Nonvested Awards Outstanding, Forfeited (105,402) (37,864) (136,497)
Number of Nonvested Awards Outstanding, Ending Balance 1,797,888 1,810,316 1,508,358
Weighted Average Grant-Date Price, Beginning Balance $ 14.83 $ 13.63 $ 19.25
Weighted Average Grant-Date Price, Granted $ 20.63 $ 16.67 $ 12.35
Weighted Average Grant-Date Price, Vested $ 14.87 $ 13.79 $ 18.06
Weighted Average Grant-Date Price, Forfeited $ 16.56 $ 14.23 $ 13.89
Weighted Average Grant-Date Price, Ending Balance $ 16.72 $ 14.83 $ 13.63
Fair Value of Shares Vested $ 11,826,372 $ 7,302,455 $ 2,336,708
Restricted Stock Units [Member]
     
Summary of restricted stock activity      
Number of Nonvested Awards Outstanding, Beginning Balance 219,498 382,846 152,300
Number of Nonvested Awards Outstanding, Granted 80,970 125,349 368,966
Number of Nonvested Awards Outstanding, Vested (60,928) (77,408) (38,255)
Number of Nonvested Awards Outstanding, Forfeited (36,458) (211,289) (100,165)
Number of Nonvested Awards Outstanding, Ending Balance 203,082 219,498 382,846
Weighted Average Grant-Date Price, Beginning Balance $ 15.23 $ 14.29 $ 20.05
Weighted Average Grant-Date Price, Granted $ 20.60 $ 16.35 $ 12.89
Weighted Average Grant-Date Price, Vested $ 15.43 $ 14.12 $ 20.01
Weighted Average Grant-Date Price, Forfeited $ 16.93 $ 14.60 $ 15.69
Weighted Average Grant-Date Price, Ending Balance $ 17.01 $ 15.23 $ 14.29
Fair Value of Shares Vested 1,364,178 1,414,244 444,870
Performance Stock Units [Member]
     
Summary of restricted stock activity      
Number of Nonvested Awards Outstanding, Beginning Balance 404,410 0  
Number of Nonvested Awards Outstanding, Granted 319,880 407,750  
Number of Nonvested Awards Outstanding, Vested (202,205)    
Number of Nonvested Awards Outstanding, Forfeited (33,875) (3,340)  
Number of Nonvested Awards Outstanding, Ending Balance 488,210 404,410  
Weighted Average Grant-Date Price, Beginning Balance $ 16.67 $ 0.00  
Weighted Average Grant-Date Price, Granted $ 20.60 $ 16.67  
Weighted Average Grant-Date Price, Vested $ 16.67    
Weighted Average Grant-Date Price, Forfeited $ 18.93 $ 16.67  
Weighted Average Grant-Date Price, Ending Balance $ 19.09 $ 16.67  
Fair Value of Shares Vested $ 4,527,370