Organization and Significant Accounting Policies - Revenue by Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 30, 2022	Jul. 31, 2021
Disaggregation of revenue
Revenue	$ 108,516	$ 101,009
Contract Liability
Disaggregation of revenue
Revenue	1,925	309
Domestic
Disaggregation of revenue
Revenue	50,103	68,388
International
Disaggregation of revenue
Revenue	58,413	32,621
U.S. government
Disaggregation of revenue
Revenue	67,299	71,075
Non-U.S. government
Disaggregation of revenue
Revenue	41,217	29,934
FFP
Disaggregation of revenue
Revenue	80,829	80,766
CPFF
Disaggregation of revenue
Revenue	26,456	19,117
T&M
Disaggregation of revenue
Revenue	1,231	1,126
Small UAS
Disaggregation of revenue
Revenue	43,256	39,924
TMS
Disaggregation of revenue
Revenue	23,011	19,176
MUAS.
Disaggregation of revenue
Revenue	19,262	22,379
HAPS
Disaggregation of revenue
Revenue	10,215	10,352
Other.
Disaggregation of revenue
Revenue	$ 12,772	$ 9,178