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Long-Term Debt and Credit Facilities (Detail)
12 Months Ended
Jan. 28, 2018
USD ($)
Dec. 15, 2016
USD ($)
Line of Credit Facility    
Conditional additional borrowing for revolving credit facility   $ 200,000,000.0
Rent adjusted leverage ratio 3.50  
EBITDAR to interest charges ratio 2.00  
Minimum    
Line of Credit Facility    
Commitment fee percentage on unused amounts 0.125%  
Maximum    
Line of Credit Facility    
Commitment fee percentage on unused amounts 0.20%  
LIBOR | Minimum    
Line of Credit Facility    
Basis spread on variable rate 1.00%  
LIBOR | Maximum    
Line of Credit Facility    
Basis spread on variable rate 1.75%  
Alternate Base Rate | Minimum    
Line of Credit Facility    
Basis spread on variable rate 0.00%  
Alternate Base Rate | Maximum    
Line of Credit Facility    
Basis spread on variable rate 0.75%  
Revolving Credit Facility    
Line of Credit Facility    
Revolving credit facilities borrowing limit   150,000,000.0
Letter of Credit    
Line of Credit Facility    
Revolving credit facilities borrowing limit   35,000,000.0
Letters of credit $ 1,200,000  
Swing Line Loans    
Line of Credit Facility    
Revolving credit facilities borrowing limit   $ 25,000,000.0