Acquisition - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
	May 30, 2023	Jun. 30, 2023	Jun. 30, 2022
Business Acquisition [Line Items]
Issuance of common stock in connection with acquisition		$ 2,123,455
Total revenues		779,791	$ 575,056
Net Income (Loss)		(77,004)	(21,564)
Inmarsat Holdings [Member]
Business Acquisition [Line Items]
The consideration transferred	$ 2,700,000
Payments to acquire business	550,700
Issuance of common stock in connection with acquisition	$ 2,100,000
Shares issued in connection with acquisition of business, net of issuance costs , shares	46,360
Current liabilities		29,600
Other long term liabilities		248,300
Total revenues		134,100
Inmarsat Holdings [Member] | Selling General and Administrative Expenses [Member]
Business Acquisition [Line Items]
Merger-related transaction costs		$ 27,400	$ 12,700
Satellite Services [Member] | Inmarsat Holdings [Member]
Business Acquisition [Line Items]
Preliminary estimated goodwill	$ 956,200
Government Systems [Member] | Inmarsat Holdings [Member]
Business Acquisition [Line Items]
Preliminary estimated goodwill	$ 478,100