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Fair Value Measurements - Pulse purchase agreement (Details) $ in Thousands	9 Months Ended
	Jan. 25, 2020 USD ($)
Pulse Aerospace, LLC | Maximum
Fair Value Measurement
Total paid	$ 6,000

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No definition available.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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