INVENTORIES - Schedule of Inventories (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Inventory, Net
Commercial jet engines and parts:	$ 60,439	$ 60,516
Total inventories	78,289	74,073
Reserves	(3,122)	(2,102)
Inventories, net	75,167	71,971
Write-down of inventory	768	6,405
Commercial Jet Engines and Parts:
Inventory, Net
Write-down of inventory	800
Overnight air cargo
Inventory, Net
Finished goods	28	0
Ground equipment manufacturing
Inventory, Net
Finished goods	9,264	1,691
Raw materials	4,688	4,695
Work in process	2,437	5,820
Corporate and other
Inventory, Net
Finished goods	728	889
Raw materials	$ 705	$ 462

Gross amount, as of the balance sheet date, of plant or equipment components to be used for the primary purpose of air transportation.

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