Derivative Instruments and Hedging Activity Tables (Tables)

3 Months Ended

Mar. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DerivativeInstrumentsNonHedging [Table Text Block]

The following table summarizes the notional amount and the fair value of the Company’s outstanding derivatives not designated as hedging instruments and balance sheet classification as of March 30, 2018 and December 31, 2017:

	March 30, 2018					December 31, 2017
(Thousands)	Notional Amount		Fair Value			Notional Amount		Fair Value
Foreign currency forward contracts - euro
Prepaid expenses	$	3,800	$	12		$	13,981	$	127
Other liabilities and accrued items	20,103		(56		)	—		—
Total	$	23,903	$	(44	)	$	13,981	$	127

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

The following table summarizes the notional amount and the fair value of the Company’s outstanding derivatives designated as cash flow hedges and balance sheet classification as of March 30, 2018 and December 31, 2017:

	March 30, 2018					December 31, 2017
(Thousands)	Notional Amount		Fair Value			Notional Amount		Fair Value
Prepaid expenses
Foreign currency forward contracts - yen	$	—	$	—		$	5,673	$	91
Foreign currency forward contracts - euro	—		—			5,026		36
Precious metal swaps	546		4			—		—
Total	546		4			10,699		127
Other assets
Precious metal swaps	690		9			880		14
Total	690		9			880		14
Other liabilities and accrued items
Foreign currency forward contracts - yen	3,920		(212		)	—		—
Foreign currency forward contracts - euro	12,904		(466		)	13,583		(201		)
Precious metal swaps	9,042		(318		)	10,067		(255		)
Total	25,866		(996		)	23,650		(456		)
Other long-term liabilities
Precious metal swaps	401		(6		)	789		(14		)
Total	$	27,503	$	(989	)	$	36,018	$	(329	)