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Fair Value Measurements (Details) (USD $)
 3 Months Ended 9 Months Ended
Oct. 27, 2012
Oct. 27, 2012
Oct. 27, 2012
Assets and liabilities measured at fair value on a recurring basis
Level 1
Jan. 28, 2012
Assets and liabilities measured at fair value on a recurring basis
Level 1
Oct. 27, 2012
Assets and liabilities measured at fair value on a recurring basis
Level 2
Jan. 28, 2012
Assets and liabilities measured at fair value on a recurring basis
Level 2
Oct. 27, 2012
Assets and liabilities measured at fair value on a recurring basis
Fair Value
Jan. 28, 2012
Assets and liabilities measured at fair value on a recurring basis
Fair Value
Transfers of financial instruments                
Value of transfers between levels $ 0 $ 0            
Assets:                
Foreign exchange currency contracts, Assets         3,305,000 8,315,000 3,305,000 8,315,000
Held-to-maturity securities       4,060,000       4,060,000
Available-for-sale securities     18,244,000 16,201,000     18,244,000 16,201,000
Total Assets     18,244,000 20,261,000 3,305,000 8,315,000 21,549,000 28,576,000
Liabilities:                
Foreign exchange currency contracts, Liabilities         429,000 1,107,000 429,000 1,107,000
Interest rate swaps         920,000 975,000 920,000 975,000
Deferred compensation obligations         7,238,000 6,762,000 7,238,000 6,762,000
Total Liabilities         $ 8,587,000 $ 8,844,000 $ 8,587,000 $ 8,844,000