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Goodwill

3 Months Ended

Jul. 31, 2021

Goodwill.

Goodwill

9. Goodwill

The following table presents the changes in the Company’s goodwill balance (in thousands):


		Small UAS			TMS			MUAS			All other			Total
Balance at April 30, 2021		$	6,340		$	—		$	288,611		$	19,254		$	314,205
Additions to goodwill			—			—			—			20,824			20,824
Impairment of goodwill			—			—			—			—			—
Balance at July 31, 2021		$	6,340		$	-		$	288,611		$	40,078		$	335,029

The goodwill balance at April 30, 2021 is attributable to the acquisitions of Pulse, ISG, and Arcturus acquisitions. The All other goodwill addition is attributable to the Telerob acquisition. Refer to Note 18—Business Acquisitions for further details.