XML 48 R35.htm IDEA: XBRL DOCUMENT v3.7.0.1
Derivative Instruments and Hedging Activities - Summary of Location and Fair Value (Details) - Designated as Hedging Instrument [Member] - USD ($)
$ in Thousands
Apr. 01, 2017
Dec. 31, 2016
Derivatives, Fair Value [Line Items]    
Total derivative assets $ 600 $ 865
Total derivative liabilities (424) (1,143)
Other Current Assets [Member] | Commodity Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Other current assets: Gain positions 600 1,013
Other current assets: Loss positions 0 (148)
Other Current Assets [Member] | Interest Rate Swap [Member]    
Derivatives, Fair Value [Line Items]    
Other current assets: Loss positions 0 0
Other Current Liabilities [Member] | Commodity Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Other current liability: Gain positions 68 564
Other current liability: Loss positions (197) (920)
Other Current Liabilities [Member] | Interest Rate Swap [Member]    
Derivatives, Fair Value [Line Items]    
Other current liability: Loss positions $ (295) $ (787)