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Fair Value - Redeemable Noncontrolling Interest (Details) - Vital River - USD ($)
$ in Thousands
6 Months Ended
Jul. 07, 2016
Jun. 25, 2016
Jun. 27, 2015
Jan. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Percentage of voting interests acquired       75.00%
Remaining ownership percentage available       25.00%
Total gains or losses (realized/unrealized):        
Discount rate   18.00%    
Percentage change in discount rate   1.00%    
Impact on fair value of a 1% increase in discount rate   $ 1,600    
Subsequent Event        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Percentage of voting interests acquired 87.00%      
Remaining ownership percentage available 13.00%      
Total gains or losses (realized/unrealized):        
Equity interest acquired 12.00%      
Purchase price $ 10,800      
Level 3 | Redeemable Noncontrolling Interest        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance   28,008 $ 28,419  
Additions   0 0  
Total gains or losses (realized/unrealized):        
Net income attributable to noncontrolling interest   320 364  
Foreign currency translation   (653) 112  
Change in fair value, included in additional paid-in capital   (1,851) 1,081  
Ending balance   $ 25,824 $ 29,976