Related-Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 1,157,045	$ 1,123,767	$ 3,468,992	$ 3,372,489
Amount receivable	749,395		749,395		$ 699,552
Navarino UK And JSAT Mobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	15,500	16,200	47,900	50,000
Cash received	15,600	$ 16,200	48,000	$ 52,400
Amount receivable	$ 8,400		$ 8,400		$ 8,500

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

VIASAT INC 10-Q