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Financial Information Related to Funded Defined Benefit Pension Plan And Unfunded Supplemental Retirement Plan (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Jan. 30, 2016
Jan. 31, 2015
Defined Benefit Plan Disclosure [Line Items]          
Employer contribution $ 55,700 $ 151,300 $ 32,700    
Net liability recognized on consolidated balance sheets       $ 178,100 $ 221,400
Funded Plan          
Defined Benefit Plan Disclosure [Line Items]          
Projected benefit obligation at beginning of year 1,309,889 996,968      
Service cost 50,080 40,481 44,623    
Interest cost 51,710 49,522 44,654    
Actuarial (gains) losses (170,674) 251,144      
Benefits paid (24,956) (28,348)      
Expenses paid (3,049) (2,945)      
Plan amendment   3,067      
Projected benefit obligation at end of year 1,213,000 1,309,889 996,968    
Accumulated benefit obligation at end of year       1,120,602 1,203,464
Fair value of plan assets at beginning of year 1,170,748 944,801      
Actual return on plan assets (72,901) 107,240      
Employer contribution 50,000 150,000      
Benefits paid (24,956) (28,348)      
Expenses paid (3,049) (2,945)      
Fair value of plan assets at end of year 1,119,842 1,170,748 944,801    
Projected benefit obligation at end of year 1,309,889 1,309,889 996,968 1,213,000 1,309,889
Fair value of plan assets at end of year 1,170,748 1,170,748 944,801 1,119,842 1,170,748
Funded status - excess obligation       93,158 139,141
Net liability recognized on consolidated balance sheets       93,158 139,141
Prior service cost       2,690 3,067
Accumulated actuarial losses       348,289 401,165
Amounts included in accumulated other comprehensive income (loss)       350,979 404,232
Unfunded Plan          
Defined Benefit Plan Disclosure [Line Items]          
Projected benefit obligation at beginning of year 82,238 59,566      
Service cost 1,562 1,398 1,716    
Interest cost 3,033 3,001 2,447    
Actuarial (gains) losses 3,806 19,552      
Benefits paid (5,672) (1,279)      
Projected benefit obligation at end of year 84,967 82,238 59,566    
Accumulated benefit obligation at end of year       70,750 68,591
Employer contribution 5,672 1,279      
Benefits paid (5,672) (1,279)      
Projected benefit obligation at end of year $ 82,238 $ 82,238 $ 59,566 84,967 82,238
Funded status - excess obligation       84,967 82,238
Net liability recognized on consolidated balance sheets       84,967 82,238
Accumulated actuarial losses       29,046 29,198
Amounts included in accumulated other comprehensive income (loss)       $ 29,046 $ 29,198