Inventories (Tables)

9 Months Ended

Dec. 31, 2012

Inventory Disclosure [Abstract]

Components of Inventories, valued using the first-in, first-out (FIFO) method

Inventories, valued using the first-in, first-out (“FIFO”) method, consist of:

	December 31, 2012		March 31, 2012
	(In thousands)
Raw materials	$	104,607	$	85,116
Work-in-process	135,971		123,723
Finished goods	307,881		270,628
	$	548,459	$	479,467