Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories are comprised of the following (in thousands):

	March 31, 2017		December 30, 2016
Raw materials	$	104,989	$	100,738
Work-in-process	91,749		89,224
Finished goods	34,554		35,189
Total	$	231,292	$	225,151