Inventories - Schedule of Components of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 25,224	$ 26,919
Work-in-process, including manufactured and purchased components	277,471	262,784
Finished goods	12,554	17,000
Rotable assets	2,422	2,381
Total inventories	$ 317,671	$ 309,084