Inventories (Tables)

12 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consisted of the following:

	March 31,
	2017			2016
At cost—FIFO basis:
Raw materials	$	74,716		$	74,968
Work-in-process	39,117			18,877
Finished goods	33,666			41,517
	147,499			135,362
LIFO cost less than FIFO cost	(16,856		)	(17,313		)
Net inventories	$	130,643		$	118,049