Goodwill (Tables)

12 Months Ended

Jul. 31, 2020

Goodwill [Abstract]

Schedule of goodwill by segment

The following table represents goodwill by reportable operating segment, including the changes in the net carrying value of goodwill during the fiscal year ended July 31, 2020:

	Commercial Solutions		Government Solutions	Total
Balance as of July 31, 2019	$	251,296,000	59,193,000	$	310,489,000
Change related to Solacom acquisition	(420,000)		—	(420,000)
Change related to GD NG-911 acquisition	4,556,000		—	4,556,000
Change related to CGC acquisition	—		15,894,000	15,894,000
Balance as of July 31, 2020	$	255,432,000	75,087,000	$	330,519,000