Annual report pursuant to Section 13 and 15(d)

Share-based Awards (Details Textual)

v2.4.0.6
Share-based Awards (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Share based awards (Textual) [Abstract]      
Maximum Term of Option 10 years    
Options Vest period 4 years    
Number of shares granted in stock option 621,000 1,521,000 977,000
Unrecognized compensation expense related to restricted stock awards $ 935 $ 1,543  
Number of shares granted during fiscal year 15,000 128,000  
Restricted stock option compensation expense 1,874 1,237  
Options Vesting rate 25.00%    
Share Based Awards (Additional Textual) [Abstract]      
Options Vesting rate 25.00%    
Cash received from option exercises under all share-based payment arrangements 27,639 17,100 1,228
Actual tax benefit realized for the tax deductions from option exercise 29,439 13,373 630
Compensation expenses related to performance based grant 0 425 637
Aggregate intrinsic value of outstanding options 180,995    
Aggregate intrinsic value exercisable options 90,599    
Sale price of our common stock on the NASDAQ Global Select Market $ 77.31    
Total income tax benefit recognized for share based compensation arrangements 3,545 3,300 1,464
2011 Incentive Award Plan [Member]
     
Share based awards (Textual) [Abstract]      
Issuance upon grant or exercise of awards 4,750    
Unissued shares under the prior plan 746    
Weighted average fair value of stock option $ 34.81 $ 13.58 $ 6.64
Unrecognized compensation expense related to restricted stock awards 32,156    
Unrecognized compensation expense is expected to be recognized over a weighted-average period (years) 2    
Total intrinsic value of options exercised 86,030 42,118 4,783
Share Based Awards (Additional Textual) [Abstract]      
Compensation expenses related to performance based grant $ 9,731 $ 9,918 $ 5,949
Restricted Stock [Member]
     
Share based awards (Textual) [Abstract]      
Maximum Term of Option 1 year    
Options Vest period 4 years 20 months  
Options Vesting rate 25.00%    
Share Based Awards (Additional Textual) [Abstract]      
Options Vesting rate 25.00%    
Performance based [Member]
     
Share based awards (Textual) [Abstract]      
Number of shares granted during fiscal year 0 0 0