Inventories (Tables)

3 Months Ended

Apr. 03, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the following (in thousands):

	April 3, 2016		December 31, 2015
Raw materials and assembled parts	$	74,065	$	56,348
Service inventories, estimated current requirements	13,559		11,556
Work-in-process	82,321		75,710
Finished goods	29,867		26,899
Total current inventories	$	199,812	$	170,513
Non-current inventories	$	54,981	$	47,109