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Inventories (Tables)
3 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of components of inventories The components of inventories are as follows:

 

 

 

June 30,
2021

 

 

March 31,
2021

 

Raw materials

 

$

50,613

 

 

$

45,211

 

Work-in-process, including manufactured and purchased components

 

 

320,701

 

 

 

277,729

 

Finished goods

 

 

12,738

 

 

 

51,221

 

Rotable assets

 

 

28,611

 

 

 

26,205

 

Total inventories

 

$

412,663

 

 

$

400,366