Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments and Hedging Activities - Derivatives Classified as Current or Noncurrent Based on Maturity Dates (Details)

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Derivative Financial Instruments and Hedging Activities - Derivatives Classified as Current or Noncurrent Based on Maturity Dates (Details) - USD ($)
$ in Thousands
Apr. 01, 2017
Dec. 31, 2016
Apr. 02, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]      
Other current assets $ 63,986 $ 84,519 $ 64,429
Accrued liabilities (19,630) (18,574) (31,369)
Other assets 8,320 18,821 7,187
Other liabilities $ (6,043) $ (7,000) $ (12,287)