Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

(In thousands)	March 31, 2018		December 30, 2017
Work in progress	$	50,522	$	49,642
Finished goods	27,395		30,261
Total inventories	$	77,917	$	79,903