Shares Used In Computing Diluted Net Income (Loss) Per Share - Additional Information (Detail) - shares |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Employee Stock Option | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive shares | 111,663 | 220,095 | 242,973 |
| PSOs and Market Condition PSUs | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive shares | 1,930,376 | 0 | 0 |
| RSU [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive shares | 2,699,376 | 5,539,871 | 2,066,973 |
| Performance-Based Performance Stock Units [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive shares | 175,721 | 165,498 | 0 |
| Viasat 401(k) Profit Sharing Plan and Employee Stock Purchase Plan [Member] | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive shares | 1,226,647 | 1,950,692 | 1,127,606 |