Inventories (Tables)

6 Months Ended

Jun. 27, 2020

Components of Inventories

	June 27, 2020		December 28, 2019
	(in thousands)
Current inventory:
Raw materials	$	62,475	$	61,522
Work in process		15,161		12,631
Finished goods		30,887		31,885
Total current inventory		108,523		106,038
Long term inventory		20,358		10,048
Total inventory	$	128,881	$	116,086