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Goodwill (Details) $ in Thousands	3 Months Ended
	Jul. 31, 2021 USD ($)
Goodwill
Goodwill, Beginning Balance	$ 314,205
Additions to goodwill	20,824
Goodwill, Ending Balance	335,029
Small UAS
Goodwill
Goodwill, Beginning Balance	6,340
Goodwill, Ending Balance	6,340
MUAS
Goodwill
Goodwill, Beginning Balance	288,611
Goodwill, Ending Balance	288,611
All other
Goodwill
Goodwill, Beginning Balance	19,254
Additions to goodwill	20,824
Goodwill, Ending Balance	$ 40,078

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975

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-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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+ References

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