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Inventory
3 Months Ended
Jun. 30, 2023
Inventory [Abstract]  
Inventory
4. Inventory

Inventory is comprised of the following:

 
 
June 30, 2023
   
March 31, 2023
 
Inventory
           
Raw materials
 
$
149,545,000
   
$
147,880,000
 
Work-in-process
   
10,097,000
     
7,033,000
 
Finished goods
   
202,874,000
     
201,198,000
 
 
   
362,516,000
     
356,111,000
 
Less allowance for excess and obsolete inventory
   
(16,412,000
)
   
(16,436,000
)
Inventory — net
   
346,104,000
     
339,675,000
 
Inventory unreturned
   
18,083,000
     
16,579,000
 
Total inventory
 
$
364,187,000
   
$
356,254,000