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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Operating Loss Carryforwards [Line Items] |  |
Benefit from income taxes | $ 533 | $ 22,813
Effective income tax rate | 1.00% | 37.00%
Increase (decrease) in gross unrecognized tax benefits | $ 73,300 |
Unrecognized tax benefits, Income tax penalties and interest expense | 21,100 |
Impact on effective tax rate | 16,300 |
Inmarsat Holdings [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Unrecognized tax benefits, Income tax penalties and interest expense resulting from acquisition | 21,500 |
Unrecognized tax Benefits, Increase resulting from acquisition | $ 65,000 |

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