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Research and Development Arrangements (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 31, 2022 USD ($) provider	Jul. 31, 2025 USD ($)	Jul. 31, 2024 USD ($)	Jul. 31, 2025 USD ($)	Jul. 31, 2024 USD ($)	Jan. 31, 2025 USD ($)	Dec. 31, 2020 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expense		$ 24,155	$ 27,250	$ 47,229	$ 52,839
R&D Services Agreement
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, fee provided							$ 46,400
Research and development fee recognized		0	1,100	200	4,300
Research and development expense		0	1,200	200	3,600
Proceeds from feeds received				46,400		$ 46,400
NASA Communication Services Project
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development fee recognized		1,800	2,500	3,500	5,100
Research and development expense		$ 1,800	$ 2,500	3,500	$ 5,100
Number of satellites \| provider	2
Research and development arrangement, funding receivable	$ 40,500
Funding for research and development				$ 29,500		$ 28,700