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Debt (Senior Credit Facility) (Details) (USD $)
9 Months Ended 9 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended
Sep. 29, 2012
Senior Credit Facility [Member]
Y
Jul. 08, 2011
Senior Credit Facility [Member]
Sep. 29, 2012
Incremental Senior Credit Facility [Member]
Jan. 20, 2012
Incremental Senior Credit Facility [Member]
Sep. 29, 2012
Five-Year Senior, Secured, Revolving Credit Facility [Member]
Jan. 20, 2012
Amendment To The Senior Credit Facility [Member]
Sep. 29, 2012
Amendment To The Senior Credit Facility [Member]
Sep. 29, 2012
Eight Scheduled Quarterly [Member]
Incremental Senior Credit Facility [Member]
Sep. 29, 2012
Four Scheduled Quarterly [Member]
Incremental Senior Credit Facility [Member]
Sep. 29, 2012
Minimum [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Maximum [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative A [Member]
Minimum [Member]
Libor [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative A [Member]
Maximum [Member]
Libor [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative B [Member]
Federal Funds [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative B [Member]
Monthly Libor [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative B [Member]
Minimum [Member]
Libor [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Alternative B [Member]
Maximum [Member]
Libor [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Standby Letters of Credit Guaranteeing Company Industrial Revenue Bonds [Member]
Senior Credit Facility [Member]
Sep. 29, 2012
Standby Letters of Credit Related to Various Insurance Contracts and Foreign Vendor Commitments [Member]
Senior Credit Facility [Member]
Line of Credit Facility [Line Items]                                      
Credit facility, initiation date         July 8, 2011   January 20, 2012                        
Term of line of credit (years) 5                                    
Maximum borrowing capacity under credit facility   $ 900,000,000   $ 150,000,000                              
Payment of financing costs 8,218,000         1,018,000                          
Unamortized financing costs   12,277,000                                  
Quarterly principal payments     5,625,000         1,875,000 3,750,000                    
Basis spread on debt instrument                       1.25% 2.00% 0.50% 1.00% 0.25% 1.00%    
Commitment fee percentage                   0.25% 0.40%                
Consolidated interest coverage ratio                   3                  
Consolidated net leverage ratio                     3.75                
Amount utilized from long-term lines of credit 670,213,000                                    
Available amount under credit facility 376,037,000                                    
Utilized borrowings under credit facility 572,850,000                                    
Standby letters of credit for various insurance contracts and commitments to foreign vendors                                   $ 46,823,000 $ 50,540,000