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Retirement Benefit Plans (Details) (USD $)
1 Months Ended 3 Months Ended
Sep. 30, 2013
May 03, 2014
Nov. 02, 2013
May 04, 2013
Feb. 01, 2014
Retirement benefit plan liabilities [Abstract]          
Retirement benefit plan liabilities   $ 14,903,000   $ 16,125,000 $ 14,601,000
Long-term retirement benefit plan liabilities   14,366,000   13,979,000 14,339,000
Defined Contribution Pension [Member]
         
Retirement benefit plan liabilities [Abstract]          
Percentage of employee gross earnings that may be contributed to plan, maximum   100.00%      
Employer matching contribution   50.00%      
Percentage of employee gross earnings that employer will provide a match for, maximum   5.00%      
Defined Contribution Plan Employer Matching Contribution Vesting Period Maximum   5 years      
Vesting percentage after two years   20.00%      
Vesting percentage after three years   50.00%      
Percentage of vesting increase per year thereafter until fully vested   25.00%      
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits [Member]
         
Retirement benefit plan liabilities [Abstract]          
Retirement benefit plan liabilities   4,000,000   3,100,000 3,900,000
Period of service in which participants become fully vested upon retirement (in years)   5      
Net periodic pension benefit cost [Abstract]          
Vesting period for incentive deferred compensation plan (in years)   3 years      
Minimum age of participant becoming fully vested (in years)   55 years      
Supplemental Executive Retirement Plan [Member]
         
Retirement benefit plan liabilities [Abstract]          
Retirement benefit plan liabilities   10,782,000   12,880,000 10,551,000
Amount classified in accrued expenses   0   2,146,000 0
Long-term retirement benefit plan liabilities   10,800,000   10,700,000 10,600,000
Net periodic pension benefit cost [Abstract]          
Service cost   129,000   133,000  
Interest cost   101,000   110,000  
Amortization of prior experience cost   18,000   19,000  
Amortization of net loss   32,000   86,000  
Net periodic pension benefit cost   280,000   348,000  
Cost recognized 2,200,000   600,000    
Other Retirement Plans [Member]
         
Retirement benefit plan liabilities [Abstract]          
Retirement benefit plan liabilities   4,121,000   3,245,000 4,050,000
Amount classified in accrued expenses   537,000   0 262,000
Accumulated Other Comprehensive Income (Loss) [Member] | Supplemental Executive Retirement Plan [Member]
         
Net periodic pension benefit cost [Abstract]          
Cost recognized     $ 400,000