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Shares Used In Computing Diluted Net (Loss) Income Per Share (Tables) | 6 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Shares Used In Computing Diluted Net (Loss) Income Per Share |
|  | Three Months Ended |  |  | Six Months Ended |
|  | September 30, 2017 |  |  | September 30, 2016 |  |  | September 30, 2017 |  |  | September 30, 2016 |
|  | (In thousands) |
Weighted average: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares outstanding used in calculating basic net (loss) income per share attributable to ViaSat, Inc. common stockholders |  |  | 58,229 |  |  |  | 49,503 |  |  |  | 58,039 |  |  |  | 49,319 |
Options to purchase common stock as determined by application of the treasury stock method |  |  | — |  |  |  | 276 |  |  |  | — |  |  |  | 281 |
Restricted stock units to acquire common stock as determined by application of the treasury stock method |  |  | — |  |  |  | 669 |  |  |  | — |  |  |  | 637 |
Potentially issuable shares in connection with certain terms of the ViaSat 401(k) Profit Sharing Plan and Employee Stock Purchase Plan |  |  | — |  |  |  | 85 |  |  |  | — |  |  |  | 156 |
Shares used in computing diluted net (loss) income per share attributable to ViaSat, Inc. common stockholders |  |  | 58,229 |  |  |  | 50,533 |  |  |  | 58,039 |  |  |  | 50,393 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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