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Long-Term Debt (Details Textual) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 12 Months Ended
Dec. 31, 2012
Jun. 30, 2011
numberofbanks
Mar. 29, 2014
numberofbanks
Mar. 31, 1995
acre
Mar. 30, 2013
Long Term Debt (Textual) [Abstract]          
London Interbank Offered Rate (LIBOR)     0.15%    
Revolving credit facility agreement term   5 years      
Revolving credit facility agreement $ 250 $ 175      
Revolving credit facility agreement, number of participating banks   7 6    
Credit Facility Increased Availability 75        
Provision allowing to expand the amount of overall facility 75 75      
Revolving credit facility agreement committed sum outstanding     105.8    
Line of credit sub-facility for issuing standby letters of credit     40    
Percentage of face amount of standby letter of credit payable as fees     1.375%    
Letters of credit outstanding     22.7    
Net availability under the credit facility     121.5    
Carrying amount of long-term debt (including current portion)     106.5   127.8
Fair value of long-term debt (including current portion)     106.5   127.8
The total amount financed for properties with capital leases and financing obligations     88.1    
Acres of land purchased       12.7  
Purchase price of land purchased       $ 0.7  
Percentage of land purchased via a non-interest mortgage       100.00%  
Period of non-interest bearing mortgage       20 years  
Line of Credit Facility [Line Items]          
Term extension of credit facility 1 year 6 months        
Minimum [Member]
          
Line of Credit Facility [Line Items]          
Interest rate over LIBOR on the facility     1.00%    
Maximum [Member]
          
Line of Credit Facility [Line Items]          
Interest rate over LIBOR on the facility     1.25%    
Percentage of net income permit as cash dividend, maximum     50.00%    
YearEnd [Member]
          
Line of Credit Facility [Line Items]          
Interest rate over LIBOR on the facility     1.25%