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Goodwill and Acquired Intangible Assets (Tables) | 12 Months Ended
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Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Allocation of Other Acquired Intangible Assets and Related Accumulated Amortization | Other acquired intangible assets and the related accumulated amortization as of March 31, 2024 and 2023 is as follows:
|  |  |  |  | As of March 31, 2024 |  |  | As of March 31, 2023 |
|  | Weighted Average Useful Life |  |  | Total |  |  | Accumulated Amortization |  |  | Net Book Value |  |  | Total |  |  | Accumulated Amortization |  |  | Net Book Value |
|  | (In years) |  |  | (In thousands) |
Contracts and customer relationships |  |  | 11 |  |  | $ | 1,437,738 |  |  | $ | (148,271 | ) |  | $ | 1,289,467 |  |  | $ | 132,563 |  |  | $ | (34,202 | ) |  | $ | 98,361 |
Orbital slots and spectrum assets |  |  | 12 |  |  |  | 1,088,600 |  |  |  | (83,600 | ) |  |  | 1,005,000 |  |  |  | 8,600 |  |  |  | (8,600 | ) |  |  | — |
Technology |  |  | 7 |  |  |  | 251,889 |  |  |  | (108,414 | ) |  |  | 143,475 |  |  |  | 151,327 |  |  |  | (83,949 | ) |  |  | 67,378 |
Trade names |  |  | 8 |  |  |  | 117,280 |  |  |  | (24,770 | ) |  |  | 92,510 |  |  |  | 32,253 |  |  |  | (12,657 | ) |  |  | 19,596 |
Other |  |  | 11 |  |  |  | 21,792 |  |  |  | (7,777 | ) |  |  | 14,015 |  |  |  | 21,782 |  |  |  | (5,912 | ) |  |  | 15,870 |
Total other acquired intangible assets |  |  | 11 |  |  | $ | 2,917,299 |  |  | $ | (372,832 | ) |  | $ | 2,544,467 |  |  | $ | 346,525 |  |  | $ | (145,320 | ) |  | $ | 201,205 |
Expected Amortization Expense for Acquired Intangible Assets | Expected amortization expense for acquired intangible assets for each of the following periods is as follows:
|  | Amortization |
|  | (In thousands) |
Expected for fiscal year 2025 |  | $ | 269,313 |
Expected for fiscal year 2026 |  |  | 269,161 |
Expected for fiscal year 2027 |  |  | 269,161 |
Expected for fiscal year 2028 |  |  | 269,161 |
Expected for fiscal year 2029 |  |  | 268,416 |
Thereafter |  |  | 1,199,255 |
|  | $ | 2,544,467 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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