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Inventories, Net (Tables)
 12 Months Ended
Mar. 31, 2019
Notes To Financial Statements [Abstract]  
Schedule of Inventory, Current
Inventories, net consisted of the following:
March 31,
 
2019
 
2018
Raw materials
 
$
83,009

 
$
83,741

Work in process
 
30,694

 
34,904

Finished goods
 
131,051

 
124,005

LIFO reserve
 
(16,757
)
 
(17,280
)
Reserve for excess and obsolete inventory
 
(19,754
)
 
(19,639
)
Inventories, net
 
$
208,243

 
$
205,731