Inventories Inventories (Tables)

6 Months Ended

Sep. 29, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are stated at the lower of actual cost (determined using the first-in, first-out method), or market (estimated net realizable value) and are comprised of the following:

(In thousands)	September 29, 2018		March 31, 2018
Raw materials	$	21,296	$	14,674
Work-in-process	175,213		167,039
Finished goods	47,133		54,364
	$	243,642	$	236,077