Inventories (Tables)

3 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consisted of the following (in thousands):

	June 30, 2020		March 31, 2020
At cost - FIFO basis:
Raw materials	$	89,168	$	85,452
Work-in-process	22,223		25,876
Finished goods	33,350		33,216
Total at cost FIFO basis	144,741		144,544
LIFO cost less than FIFO cost	(20,169)		(17,171)
Net inventories	$	124,572	$	127,373