Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 31, 2022
Corporate and other:
Whole engines available for sale or tear-down	$ 6,703	$ 15,403
Parts	68,328	45,036
Total inventories	90,567	78,289
Reserves	(4,349)	(3,122)
Total inventories, net of reserves	86,218	75,167
Overnight air cargo
Ground equipment manufacturing:
Finished goods	28	28
Corporate and other:
Finished goods	28	28
Ground equipment manufacturing:
Ground equipment manufacturing:
Raw materials	6,258	4,688
Work in process	1,549	2,437
Finished goods	6,254	9,264
Corporate and other:
Raw materials	6,258	4,688
Finished goods	6,254	9,264
Corporate and other
Ground equipment manufacturing:
Raw materials	720	705
Finished goods	727	728
Corporate and other:
Raw materials	720	705
Finished goods	$ 727	$ 728