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Fair Value (Tables)
9 Months Ended
Oct. 29, 2011
Fair Value [Abstract]  
Company's assets and liabilities measured at fair value
  Assets and Liabilities at Fair Value as of October 29, 2011
  (in thousands)
   Level 1  Level 2  Level 3  Total
ASSETS:           
 Money market funds(1)$ 171,513 $ - $ - $ 171,513
 ARS - available-for-sale - student loan backed  -   -   84,897   84,897
 ARS - available-for-sale - municipal authority bonds  -   -   15,437   15,437
 Municipal notes and bonds held in the Rabbi Trust  11,572   -   -   11,572
 Derivative financial instruments  -   1,457   -   1,457
Total assets measured at fair value$ 183,085 $ 1,457 $ 100,334 $ 284,876
LIABILITIES:           
 Derivative financial instruments  -   922   -   922
Total liabilities measured at fair value$ - $ 922 $ - $ 922
             
(1)Includes $170.7 million of money market funds included in Cash and Equivalents and $0.8 million of money market funds held in the Rabbi Trust included in Other Assets on the Consolidated Balance Sheet.
Fair value assets measured on recurring basis unobservable input reconciliation
(in thousands) Available-for-sale ARS - Student Loans  Available-for-sale ARS - Muni Bonds  Total
Fair value, January 29, 2011 $ 85,732 $ 14,802 $ 100,534
Redemptions  (1,700)      (1,700)
Gains and (losses), net:        
Reported in Other Comprehensive Income  865   635   1,500
Fair value, October 29, 2011 $ 84,897 $ 15,437 $ 100,334