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Debt - Additional Information (Details) - USD ($)
Apr. 29, 2017
Jan. 28, 2017
Apr. 30, 2016
Jun. 30, 2015
Line of Credit Facility [Line Items]        
Borrowings on revolving credit $ 59,000,000   $ 20,000,000  
Credit Agreement [Member]        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity       $ 1,500,000,000
Credit Agreement [Member] | Unsecured Term Loan [Member]        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity       1,000,000,000
Borrowings on revolving credit     $ 317,625,000  
Fixed rate     1.81%  
Credit Agreement [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity       $ 500,000,000
Credit Agreement [Member] | Unsecured Revolving Line of Credit [Member]        
Line of Credit Facility [Line Items]        
Borrowings on revolving credit     $ 20,000,000  
Fixed rate     3.875%  
Amended Credit Agreement [Member] | Unsecured Term Loan [Member]        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity   $ 295,075,000    
Borrowings on revolving credit $ 291,387,000      
Fixed rate 2.24%      
Amended Credit Agreement [Member] | Unsecured Revolving Line of Credit [Member]        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity   $ 750,000,000    
Borrowings on revolving credit $ 59,000,000      
Fixed rate 2.19%