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v3.19.1

Segment Information - Segment Revenues and Operating Profits (Losses) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017
Revenues: |  |  |
Total revenues | $ 2,068,258 | $ 1,594,625 | $ 1,559,337
Operating profits (losses): |  |  |
(Loss) income from operations | (60,620) | (92,187) | 36,459
Amortization of acquired intangible assets | (9,655) | (12,231) | (10,788)
Product [Member] |  |  |
Revenues: |  |  |
Total revenues | 1,092,691 | 755,547 | 713,936
Service [Member] |  |  |
Revenues: |  |  |
Total revenues | 975,567 | 839,078 | 845,401
Operating Segments [Member] |  |  |
Operating profits (losses): |  |  |
(Loss) income from operations | (50,965) | (79,956) | 47,247
Operating Segments [Member] | Satellite Services [Member] |  |  |
Revenues: |  |  |
Total revenues | 684,205 | 589,287 | 629,647
Operating profits (losses): |  |  |
(Loss) income from operations | (64,321) | 12,018 | 131,085
Amortization of acquired intangible assets | (4,857) | (7,622) | (5,866)
Operating Segments [Member] | Satellite Services [Member] | Product [Member] |  |  |
Revenues: |  |  |
Total revenues |  | 664 | 27,711
Operating Segments [Member] | Satellite Services [Member] | Service [Member] |  |  |
Revenues: |  |  |
Total revenues | 684,205 | 588,623 | 601,936
Operating Segments [Member] | Commercial Networks [Member] |  |  |
Revenues: |  |  |
Total revenues | 428,404 | 233,221 | 244,607
Operating profits (losses): |  |  |
(Loss) income from operations | (166,613) | (229,105) | (180,496)
Amortization of acquired intangible assets | (1,542) | (1,563) | (1,679)
Operating Segments [Member] | Commercial Networks [Member] | Product [Member] |  |  |
Revenues: |  |  |
Total revenues | 383,547 | 198,034 | 211,458
Operating Segments [Member] | Commercial Networks [Member] | Service [Member] |  |  |
Revenues: |  |  |
Total revenues | 44,857 | 35,187 | 33,149
Operating Segments [Member] | Government Systems [Member] |  |  |
Revenues: |  |  |
Total revenues | 955,649 | 772,117 | 685,083
Operating profits (losses): |  |  |
(Loss) income from operations | 179,969 | 137,131 | 96,658
Amortization of acquired intangible assets | (3,256) | (3,046) | (3,243)
Operating Segments [Member] | Government Systems [Member] | Product [Member] |  |  |
Revenues: |  |  |
Total revenues | 709,144 | 556,849 | 474,767
Operating Segments [Member] | Government Systems [Member] | Service [Member] |  |  |
Revenues: |  |  |
Total revenues | 246,505 | 215,268 | 210,316
Material Reconciling Items [Member] |  |  |
Operating profits (losses): |  |  |
Amortization of acquired intangible assets | $ (9,655) | $ (12,231) | $ (10,788)

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