Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Notes To Financial Statements [Abstract]

Schedule of Inventory, Current

Inventories at June 30, 2018 and December 30, 2017 are as follows (in thousands): 

	Jun 30, 2018		Dec 30, 2017
Raw materials and parts	$	215,056	$	180,559
Work-in-process	57,092		38,917
Finished goods	221,519		205,163
	$	493,667	$	424,639