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Long-Term Debt and Capital Lease Obligations (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 3 Months Ended 6 Months Ended
Jun. 27, 2014
Jun. 27, 2014
Long-term Debt [Member]
Oct. 23, 2012
Long-term Debt [Member]
Credit Facility [Member]
Jun. 27, 2014
Long-term Debt [Member]
Credit Facility [Member]
Jun. 27, 2014
Revolving Credit Facility [Member]
Unsecured Debt [Member]
Oct. 23, 2012
Revolving Credit Facility [Member]
Unsecured Debt [Member]
Debt Instrument [Line Items]            
Line of Credit Facility, Interest Rate Description         LIBOR  
Debt Instrument, Basis Spread on Variable Rate         1.50%  
Line of Credit Facility, Maximum Borrowing Capacity   $ 520.2   $ 500.0   $ 500.0
Amount of committed working capital facilities applied to letter of credit facility 17.4          
Other letters of credit and bank guarantees $ 13.5          
Debt instrument, Term     5 years 5 years 0 months