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Related-Party Transactions - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Revenues | $ 1,140,893 | $ 1,122,262 | $ 2,311,947 | $ 2,248,722 |
Amount receivable | 682,820 |  | 682,820 |  | $ 699,552
Navarino UK And JSAT Mobile [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Revenues | 15,500 | 17,000 | 32,400 | 33,800 |
Cash received | 17,100 | $ 16,900 | 32,400 | $ 36,200 |
Amount receivable | $ 8,500 |  | $ 8,500 |  | $ 8,500

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