DERIVATIVE FINANCIAL INSTRUMENTS - Gain (Loss) on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	$ 1,766	$ (453)	$ 3,378	$ 1,450
Commodity forward contracts | Product cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	0	(1,329)	0	(1,425)
Foreign currency forward contracts | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	116	123	146	827
Foreign currency forward contracts | Product sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	1,017	0	1,169	0
Interest rate hedge amortization | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	(16)	(16)	(48)	(48)
Cross currency swap contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	$ 649	$ 769	$ 2,111	$ 2,096