Related-Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 1,128,539	$ 651,444	$ 3,133,745	$ 1,890,059
Amount receivable	675,846		675,846		$ 419,934
Navarino UK And JSAT Mobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	17,300		42,600
Cash received	18,000		43,100
Amount receivable	$ 11,700		$ 11,700