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Basis of Presentation - Additional Information (Detail 2) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 07, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2024
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Increase (decrease) in unbilled accounts receivable |  |  |  | $ (18,500) |  |
Insurance recovery proceeds |  |  |  | 240,000 |  |
Capitalized costs related to software developed for resale |  | $ 758,000 |  | 758,000 |  | $ 723,900
Capitalized cost related to software development for resale, additions |  | 18,300 | $ 25,100 | 56,100 | $ 56,100 |
Amortization expense of capitalized software development costs |  | 13,500 | 14,700 | 42,900 | 43,200 |
Capitalized Computer Software, Accumulated Amortization |  | 504,200 |  | 504,200 |  | 483,300
Gross capitalized implementation costs incurred in cloud computing arrangements |  | 78,900 |  | 78,900 |  | 63,600
Accumulated amortization related to capitalized implementation costs incurred in cloud computing arrangements |  | 15,000 |  | 15,000 |  | $ 9,500
Amortization of capitalized implementation costs incurred in cloud computing arrangements |  | $ 2,200 | $ 2,200 | $ 5,400 | $ 2,200 |
Maximum [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Estimated useful life, years |  | 20 years |  | 20 years |  |
Software Development Costs [Member] | Maximum [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Estimated useful life, years |  | 5 years |  | 5 years |  |
Funded Research and Development from Customer Contracts [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Percentage of revenue |  | 11.00% | 10.00% | 12.00% | 12.00% |
Fixed-price Contract [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Percentage of revenue |  | 96.00% | 96.00% | 96.00% | 95.00% |
U.S. Government as an Individual Customer [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Percentage of revenue |  | 20.00% | 17.00% | 18.00% | 17.00% |
Satellites [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Insurance recovery proceeds | $ 759,000 | $ 42,500 |  | $ 240,000 |  |
Satellites [Member] | Subsequent Event [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Insurance recovery proceeds | $ 10,000 |  |  |  |  |
Communication Services [Member] | Satellites [Member] | Selling General and Administrative Expenses [Member] |  |  |  |  |  |
Company And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Satellite impairment loss, net, including liabilities associated with the termination of certain subcontractor agreements |  |  | $ 905,500 |  | $ 905,500 |

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