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Financial Information Related to Funded Defined Benefit Retirement Plan And Unfunded Supplemental Retirement Plan (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Nov. 02, 2013
Oct. 27, 2012
Nov. 02, 2013
Oct. 27, 2012
Funded Plan
        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 10,919 $ 11,709 $ 33,467 $ 31,359
Interest cost 10,758 10,856 33,408 31,381
Expected return on plan assets (16,108) (13,216) (45,355) (41,068)
Recognized actuarial losses 7,009 4,926 20,846 19,121
Expense related to current period 12,578 14,275 42,366 40,793
Correction of prior years pension accruals   22,317   22,317
Total expense 12,578 36,592 42,366 63,110
Unfunded Plan
        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 245 407 1,287 1,086
Interest cost 650 609 1,835 1,749
Amortization of prior service cost   1 2 2
Recognized actuarial losses 1,041 894 2,163 1,844
Expense related to current period 1,936 1,911 5,287 4,681
Total expense $ 1,936 $ 1,911 $ 5,287 $ 4,681