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Basis of Presentation - Summary of Minority Interest (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to Viasat, Inc. | $ (48,240) | $ 3,291 | $ (69,804) | $ 20,259
TrellisWare [Member] |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to Viasat, Inc. | (48,240) | 3,291 | (69,804) | 20,259
Transfers to noncontrolling interest | (11,783) |  | (11,783) |
Change from net income (loss) attributable to Viasat, Inc. and transfers from (to) noncontrolling interest | $ (60,023) | $ 3,291 | $ (81,587) | $ 20,259

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