INVENTORIES (Tables)

9 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Schedule of components of inventories

	December 31, 2019		March 31, 2019
Raw materials	$	39,036	$	35,883
Work-in-process, including manufactured and purchased components	322,336		277,996
Finished goods	57,061		42,399
Rotable assets	55,430		57,282
Total inventories	$	473,863	$	413,560