v3.26.1
Composition of Certain Balance Sheet Captions - Composition of Certain Balance Sheet Captions (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Accounts receivable, net:    
Accounts receivable, Billed $ 530,060 $ 539,758
Accounts receivable, Unbilled 226,381 227,840
Allowance for doubtful accounts (12,018) (14,168)
Accounts receivable, net 744,423 753,430
Inventories:    
Raw materials 117,174 108,697
Work in process 20,624 25,054
Finished goods 155,990 147,469
Inventories 293,788 281,220
Prepaid expenses and other current assets:    
Prepaid expenses 170,551 179,081
Other 160,188 163,441
Prepaid expenses and other current assets 330,739 342,522
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 12,474,065 12,283,827
Less: accumulated depreciation and amortization (5,225,166) (5,011,190)
Property and equipment, net 7,248,899 7,272,637
Acquired intangible assets, net:    
Acquired intangible assets, gross 2,878,206 2,879,053
Less: accumulated amortization (946,342) (881,617)
Acquired intangible assets, net 1,931,864 1,997,436
Other assets:    
Deferred income taxes 67,098 68,699
Capitalized software costs, net 320,932 316,947
Patents, orbital slots and other licenses, net 117,501 120,194
Other 275,029 273,669
Other assets 780,560 779,509
Accrued and other liabilities:    
Collections in excess of revenues and deferred revenues 319,716 292,592
Accrued employee compensation 78,483 207,741
Operating lease liabilities $ 62,719 $ 60,879
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accrued and other liabilities Accrued and other liabilities
Interest payable $ 79,649 $ 34,064
Other 361,963 355,916
Accrued and other liabilities 902,530 951,192
Other liabilities:    
Deferred revenues, long-term portion 1,073,577 1,064,261
Deferred income taxes 995,471 1,016,850
Other 270,620 298,190
Other liabilities 2,339,668 2,379,301
Contracts and Customer Relationships [Member]    
Acquired intangible assets, net:    
Acquired intangible assets, gross 1,432,774 1,432,934
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 223,823 223,954
Trade Names [Member]    
Acquired intangible assets, net:    
Acquired intangible assets, gross 114,565 114,570
Other [Member]    
Acquired intangible assets, net:    
Acquired intangible assets, gross 18,444 18,995
Equipment and Software [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 4,388,811 4,298,300
CPE Leased Equipment [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 517,947 522,882
Furniture and Fixtures [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 52,323 54,185
Leasehold Improvements [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 325,029 325,087
Buildings [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 15,062 15,062
Land [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 11,251 11,251
Construction in Progress [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 682,201 662,841
Satellites [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 3,410,155 3,410,741
Satellite Ka-band Capacity Obtained under Finance Leases [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross 339,428 339,428
Satellites under Construction [Member]    
Property, equipment and satellites, net:    
Property, equipment and satellites, gross $ 2,731,858 $ 2,644,050