Inventories (Tables)

6 Months Ended

Jul. 03, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the following (in thousands):

	July 3, 2016		December 31, 2015
Raw materials and assembled parts	$	69,717	$	56,348
Service inventories, estimated current requirements	13,461		11,556
Work-in-process	86,247		75,710
Finished goods	30,879		26,899
Total current inventories	$	200,304	$	170,513
Non-current inventories	$	54,402	$	47,109