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Debt (Details 2)
$ in Millions
9 Months Ended
Oct. 27, 2015
USD ($)
Sep. 30, 2015
USD ($)
May. 31, 2011
USD ($)
Revolving Loans      
Debt      
Maximum commitment   $ 462.8  
Amended Credit Agreement | US Dollar revolving loans      
Debt      
Maximum commitment   $ 250.0 $ 250.0
Maximum leverage ratio   3.0  
Minimum interest coverage ratio   3.0  
Amended Credit Agreement | US Dollar revolving loans | Minimum      
Debt      
Interest rate added to base rate (as a percent)   0.80%  
Facility fee (as a percent)   0.20%  
Amended Credit Agreement | US Dollar revolving loans | Maximum      
Debt      
Interest rate added to base rate (as a percent)   1.65%  
Facility fee (as a percent)   0.35%  
Amended Credit Agreement | US Dollar revolving loans | Prime rate      
Debt      
Variable interest rate base   prime rate  
Amended Credit Agreement | US Dollar revolving loans | Federal funds rate      
Debt      
Variable interest rate base   federal funds rate  
Interest rate added to base rate (as a percent)   0.50%  
Amended Credit Agreement | US Dollar revolving loans | Adjusted LIBOR      
Debt      
Variable interest rate base   adjusted LIBOR  
Interest rate added to base rate (as a percent)   1.00%  
Amended Credit Agreement | US Dollar revolving loans | LIBOR      
Debt      
Variable interest rate base   LIBOR  
2015 Credit Agreement | US Dollar revolving loans | Subsequent Event      
Debt      
Maximum commitment $ 500.0    
Maximum leverage ratio 3.5    
Minimum interest coverage ratio 2.5    
2015 Credit Agreement | US Dollar revolving loans | Subsequent Event | Minimum      
Debt      
Facility fee (as a percent) 0.10%    
2015 Credit Agreement | US Dollar revolving loans | Subsequent Event | Maximum      
Debt      
Facility fee (as a percent) 0.20%    
2015 Credit Agreement | US Dollar revolving loans | Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread | Subsequent Event | Minimum      
Debt      
Interest rate added to base rate (as a percent) 0.00%    
2015 Credit Agreement | US Dollar revolving loans | Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread | Subsequent Event | Maximum      
Debt      
Interest rate added to base rate (as a percent) 0.30%    
2015 Credit Agreement | US Dollar revolving loans | Prime rate | Subsequent Event      
Debt      
Variable interest rate base prime rate    
2015 Credit Agreement | US Dollar revolving loans | Federal funds rate | Subsequent Event      
Debt      
Variable interest rate base federal funds rate    
Interest rate added to base rate (as a percent) 0.50%    
2015 Credit Agreement | US Dollar revolving loans | Adjusted LIBOR | Subsequent Event      
Debt      
Variable interest rate base adjusted LIBOR    
Interest rate added to base rate (as a percent) 1.00%    
2015 Credit Agreement | US Dollar revolving loans | LIBOR | Subsequent Event      
Debt      
Variable interest rate base LIBOR    
2015 Credit Agreement | US Dollar revolving loans | LIBOR | Subsequent Event | Minimum      
Debt      
Interest rate added to base rate (as a percent) 0.90%    
2015 Credit Agreement | US Dollar revolving loans | LIBOR | Subsequent Event | Maximum      
Debt      
Interest rate added to base rate (as a percent) 1.30%