DERIVATIVE FINANCIAL INSTRUMENTS - Gain (Loss) on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	$ 1,066	$ 709	$ 1,542	$ 1,612
Commodity forward contracts | Product cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	270	0	270	0
Foreign currency forward contracts | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	154	(93)	(64)	30
Foreign currency forward contracts | Product sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	0	99	0	152
Interest rate hedge amortization | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	(16)	(16)	(32)	(32)
Cross currency swap contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives recognized in earnings	$ 658	$ 719	$ 1,368	$ 1,462