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Derivatives - Fair Value of Derivative Instruments (Details) - USD ($)
$ in Thousands
Jul. 01, 2017
Dec. 31, 2016
Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Other Current Assets [Member]    
Derivatives in an Asset Position:    
Derivatives in an asset position $ 58 $ 0
Notional amount, Derivative asset 950 0
Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Other Current Liabilities [Member]    
Derivatives in a Liability Position:    
Derivatives in a liability position (37) (41)
Notional amount, Derivative liability 863 2,380
Designated as Hedging Instrument [Member] | Interest Rate Swap Agreement [Member] | Other Long-Term Assets [Member]    
Derivatives in an Asset Position:    
Derivatives in an asset position 48 62
Notional amount, Derivative asset 10,000 10,000
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | NII FPG [Member]    
Derivatives in a Liability Position:    
Notional amount, Derivative liability 124,459  
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Other Current Assets [Member]    
Derivatives in an Asset Position:    
Derivatives in an asset position 9 2
Notional amount, Derivative asset 386 227
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Other Current Liabilities [Member]    
Derivatives in a Liability Position:    
Derivatives in a liability position (2,005) (237)
Notional amount, Derivative liability $ 141,396 $ 17,185