Related-Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 4,519,571	$ 4,283,758	$ 2,556,158
Amount receivable	699,552	678,210
Navarino UK And JSAT Mobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	65,700	64,400
Cash received	68,800	61,100
Amount receivable	$ 8,500	$ 13,200