Goodwill (Details)	12 Months Ended
	Jul. 31, 2023 USD ($)	Jul. 31, 2023 USD ($) operating_segment	Jul. 31, 2023 USD ($) segment	Aug. 01, 2023 $ / shares
Goodwill [Roll Forward]
Balance as of July 31, 2022	$ 347,692,000
Goodwill, Ending Balance	347,692,000
Number of operating segments		2	2
Goodwill	347,692,000	$ 347,692,000	$ 347,692,000
Common Stock
Goodwill [Roll Forward]
Share price (in dollars per share) | $ / shares				$ 10.09
Satellite and Space Communications
Goodwill [Roll Forward]
Balance as of July 31, 2022	173,602,000
Goodwill, Ending Balance	173,602,000
Percentage of fair value in excess of carrying amount for reporting unit				18.30%
Goodwill	173,602,000	173,602,000	173,602,000
Terrestrial and Wireless Networks
Goodwill [Roll Forward]
Balance as of July 31, 2022	174,090,000
Goodwill, Ending Balance	174,090,000
Percentage of fair value in excess of carrying amount for reporting unit				8.90%
Goodwill	$ 174,090,000	$ 174,090,000	$ 174,090,000