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Credit Facility - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 13, 2018
Aug. 03, 2015
Jul. 28, 2018
Oct. 27, 2018
Oct. 28, 2017
Sep. 30, 2016
Line of Credit Facility [Line Items]            
Allowable annual dividend payment under credit facility       $ 70,000,000    
Line of credit facility, amount outstanding       278,325,000 $ 242,833,000  
Letters of credit, outstanding amount       33,213,000 $ 36,733,000  
Amended Credit Agreement            
Line of Credit Facility [Line Items]            
Unamortized deferred financing fees       $ 4,425,000    
Amortization period for deferred financing fees       5 years    
Amended Credit Agreement | Maximum            
Line of Credit Facility [Line Items]            
Option to increase in commitments under credit agreement   $ 250,000,000        
Credit Facility            
Line of Credit Facility [Line Items]            
Write off of deferred financing fees     $ 275,000      
Unamortized deferred financing fees     $ 3,780,000      
Amortization period for deferred financing fees     5 years      
Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Credit facility maturity term, in years   5 years        
Credit facility, borrowing capacity $ 750,000,000 $ 700,000,000       $ 50,000,000
Credit facility , maturity date Jul. 13, 2023          
Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)            
Line of Credit Facility [Line Items]            
Debt instrument, percentage points added to reference rate   1.75%        
Revolving Credit Facility | Maximum | Base Rate            
Line of Credit Facility [Line Items]            
Debt instrument, percentage points added to reference rate   0.75%        
Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)            
Line of Credit Facility [Line Items]            
Debt instrument, percentage points added to reference rate   1.25%        
Revolving Credit Facility | Minimum | Base Rate            
Line of Credit Facility [Line Items]            
Debt instrument, percentage points added to reference rate   0.25%        
FILO Credit Facility, Revolving Credit Facility, the Credit Facility            
Line of Credit Facility [Line Items]            
Debt instrument, interest rate description       Interest under the Revolving Credit Facility accrues, at the election of the Company, at a LIBOR or alternate base rate, plus, in each case, an applicable interest rate margin between LIBOR plus 1.750% per annum and LIBOR plus 1.250% per annum or between the alternate base rate plus 0.750% per annum and the alternate base rate plus 0.250% per annum based upon the average daily availability under the Revolving Credit Facility for the immediately preceding fiscal quarter.    
Debt instrument, interest rate   1.00%