Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands
 3 Months Ended
Apr. 30, 2011
May 01, 2010
Operating activities:    
Net income $ 52,471 $ 55,898
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization expense 19,304 18,275
Deferred income taxes (5,140) 9,049
Loss on disposition of equipment 155 20
Non-cash share-based compensation expense 6,831 7,762
Pension expense, net of contributions 282 961
Change in assets and liabilities:    
Inventories (22,719) (13,889)
Accounts payable 69,607 49,982
Current income taxes 5,787 (11,049)
Other current assets (380) (5,412)
Other current liabilities (6,577) (6,256)
Other assets (2,441) (4,355)
Other liabilities 8,365 6,775
Net cash provided by operating activities 125,545 107,761
Investing activities:    
Capital expenditures (19,197) (11,484)
Cash proceeds from sale of property and equipment 100 66
Other (2) (9)
Net cash used in investing activities (19,099) (11,427)
Financing activities:    
Payment of capital lease obligations (599) (646)
Proceeds from the exercise of stock options 3,469 27,244
Excess tax benefit from share-based awards 1,546 12,850
Payment for treasury shares acquired (4,626) (158,629)
Other 120 62
Net cash used in financing activities (90) (119,119)
Increase (decrease) in cash and cash equivalents 106,356 (22,785)
Cash and cash equivalents:    
Beginning of period 177,539 283,733
End of period 283,895 260,948
Supplemental disclosure of cash flow information:    
Cash paid for interest, including capital leases 36 41
Cash paid for income taxes, excluding impact of refunds 31,269 22,922
Non-cash activity:    
Assets acquired under capital leases 130 0
Accrued property and equipment $ 8,060 $ 8,227