Derivatives (Tables)
12 Months Ended
Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Gains (Losses) on Derivative Financial Instruments

The following represents the gains (losses) on derivative financial instruments for the years ended January 2, 2016, and January 3, 2015, and their classifications within the accompanying consolidated financial statements (in thousands):

 

     Derivatives in Cash Flow Hedging Relationships  
     Amount of Gain or
(Loss) Recognized in
OCI on Derivatives
(Effective Portion)
    Location of Gain or
(Loss) Reclassified

from Accumulated
OCI into Income
(Effective Portion)
     Amount of Loss
Reclassified from
Accumulated OCI into
Income (Effective
Portion)
 
     Year Ended            Year Ended  
     January 2,      January 3,            January 2,      January 3,  
     2016      2015            2016      2015  

Aluminum contracts

   $ 126      $ 346       Cost of sales      $ —        $ (7

Interest rate swap

   $ —        $ (558     Interest expense, net      $ —        $ —    

Interest rate swap

   $ —        $ —         Other expense, net      $ —        $ (1,188

 

     Location of Gain or
(Loss) Recognized

in Income on
Derivatives
(Ineffective Portion)
     Amount of Gain or
(Loss) Recognized in
Income on Derivatives
(Ineffective Portion)
 
            Year Ended  
            January 2,      January 3,  
            2016      2015  

Aluminum contracts

     Other expense, net      $ (388    $ (221

Interest rate swap

     Other expense, net      $ —        $ (314

Interest rate cap

     Other expense, net      $ —        $ (27