XML 43 R26.htm IDEA: XBRL DOCUMENT v2.4.0.8
Credit Agreement (Details) (USD $)
 9 Months Ended
Sep. 27, 2014
May 16, 2014
Dec. 28, 2013
Sep. 28, 2013
Debt Disclosure [Abstract]        
Senior credit facility, maximum borrowing capacity $ 400,000,000 $ 250,000,000    
Swing loan maximum borrowing capacity 30,000,000 20,000,000    
Line of credit facility increase option   150,000,000    
Line of credit facility, expiration date Oct. 31, 2016      
Senior credit facility amount outstanding 150,000,000   0 40,000,000
Letters of credit under senior credit facility amount outstanding $ 41,100,000     $ 47,300,000
Bank's base rate 3.25%      
London inter-bank offer rate 0.15%      
Percentage of additional interest added to LIBOR minimum 0.40%      
Percentage of additional interest added to LIBOR maximum 1.00%      
Percentage of additional interest added to LIBOR 0.50%      
Commitment fee minimum 0.08%      
Commitment fee maximum 0.20%      
Commitment fee for unused capacity 0.10%