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Composition of Certain Balance Sheet Captions - Composition of Certain Balance Sheet Captions (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Mar. 31, 2025
--- | --- | ---
Accounts receivable, net: |  |
Accounts receivable, Billed | $ 527,033 | $ 539,522
Accounts receivable, Unbilled | 180,411 | 180,871
Allowance for doubtful accounts | (21,259) | (20,841)
Accounts receivable, net | 686,185 | 699,552
Inventories: |  |
Raw materials | 95,978 | 96,893
Work in process | 21,997 | 19,761
Finished goods | 166,241 | 177,289
Inventories | 284,216 | 293,943
Prepaid expenses and other current assets: |  |
Prepaid expenses | 174,435 | 176,694
Other | 133,477 | 105,649
Prepaid expenses and other current assets | 307,912 | 282,343
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 11,627,598 | 11,440,273
Less: accumulated depreciation and amortization | (4,288,128) | (4,034,609)
Property and equipment, net | 7,339,470 | 7,405,664
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 2,879,415 | 2,904,049
Less: accumulated amortization | (687,641) | (633,272)
Acquired intangible assets, net | 2,191,774 | 2,270,777
Other assets: |  |
Deferred income taxes | 148,766 | 160,452
Capitalized software costs, net | 264,813 | 264,492
Patents, orbital slots and other licenses, net | 126,206 | 119,193
Other | 313,272 | 301,641
Other assets | 853,057 | 845,778
Accrued and other liabilities: |  |
Collections in excess of revenues and deferred revenues | 298,876 | 294,034
Accrued employee compensation | 88,257 | 185,556
Accrued vacation | 48,323 | 46,651
Operating lease liabilities | $ 67,297 | $ 65,310
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued and other liabilities | Accrued and other liabilities
Interest payable | $ 79,045 | $ 52,183
Other | 285,518 | 264,795
Accrued and other liabilities | 867,316 | 908,529
Other liabilities: |  |
Deferred revenues, long-term portion | 779,444 | 786,710
Deferred income taxes | 1,068,545 | 1,069,717
Other | 318,459 | 324,726
Other liabilities | 2,166,448 | 2,181,153
Contracts and Customer Relationships [Member] |  |
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 1,433,043 | 1,432,562
Orbital Slots And Spectrum Assets [Member] |  |
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 1,088,600 | 1,088,600
Technology [Member] |  |
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 224,571 | 247,921
Trade Names [Member] |  |
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 114,587 | 116,949
Other [Member] |  |
Acquired intangible assets, net: |  |
Acquired intangible assets, gross | 18,614 | 18,017
Equipment and Software [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 3,941,901 | 3,837,083
CPE Leased Equipment [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, cost | 524,974 | 525,972
Furniture and Fixtures [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 58,112 | 58,153
Leasehold Improvements [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 315,333 | 313,249
Buildings [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 15,388 | 15,388
Land [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 19,661 | 19,661
Construction in Progress [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 732,318 | 722,194
Satellites [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 3,412,660 | 3,405,067
Satellite Ka-band Capacity Obtained under Finance Leases [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | 338,201 | 338,201
Satellites under Construction [Member] |  |
Property, equipment and satellites, net: |  |
Property, equipment and satellites, gross | $ 2,269,050 | $ 2,205,305

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