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Derivative Financial Instruments, Narrative (Details) - Foreign Exchange Forward [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 27, 2016
Mar. 29, 2015
Dec. 27, 2015
Not Designated as Hedging Instrument [Member] | Intercompany Loans [Member]      
Undesignated Hedges [Abstract]      
Hedge description of hedged item Intercompany Loans    
Underlying risk Foreign Currency    
Notional amount of hedged item $ 88,862 $ 119,395 $ 341,389
Not Designated as Hedging Instrument [Member] | Intercompany Loans [Member] | Other Income (Expense) [Member]      
Undesignated Hedges [Abstract]      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 3,255 10,071  
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]      
Hedge Ineffectiveness [Abstract]      
Ineffective portion, amount of gains (losses) reclassified from other comprehensive earnings into earnings 3,957 0  
Undesignated Hedges [Abstract]      
Notional amount of hedged item $ 1,630,256 $ 1,229,537 $ 1,532,198