Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments and Hedging Activities - Outstanding Derivatives on Individual Contract Basis at Gross Amounts (Details)

v3.7.0.1
Derivative Financial Instruments and Hedging Activities - Outstanding Derivatives on Individual Contract Basis at Gross Amounts (Details) - USD ($)
$ in Thousands
Apr. 01, 2017
Dec. 31, 2016
Apr. 02, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Fair value of derivatives with unrealized gains $ 72,306 $ 103,340 $ 71,616
Fair value of derivatives with unrealized losses (25,673) (25,574) (43,656)
Foreign exchange contracts designated as hedging instruments      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Fair value of derivatives with unrealized gains 72,306 103,340 71,007
Fair value of derivatives with unrealized losses (25,460) (25,292) (43,149)
Foreign exchange contracts not designated as hedging      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Fair value of derivatives with unrealized gains 0 0 609
Fair value of derivatives with unrealized losses $ (213) $ (282) $ (507)