Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales Satisfied Overtime and at a Point in Time (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 523	$ 1,214
Net sales	349,384	396,646
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	254,120	257,203
Amortization of acquired contract liabilities	523	1,202
Revenues excluding intercompany sales	254,643	258,405
Systems & Support [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	120,718	118,981
Systems & Support [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	133,402	138,222
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	94,741	138,229
Amortization of acquired contract liabilities	0	12
Revenues excluding intercompany sales	94,741	138,241
Aerospace Structures [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	89,592	129,523
Aerospace Structures [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 5,149	$ 8,706