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Inventories - Schedule of Components of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Mar. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 44,841 $ 45,211
Work-in-process, including manufactured and purchased components 269,368 277,729
Finished goods 19,472 51,221
Rotable assets 28,011 26,205
Total inventories $ 361,692 $ 400,366