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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
May 08, 2023 | Jul. 08, 2022 | Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2023
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  | $ 1,128,539 |  | $ 651,444 |  |  |  | $ 3,133,745 | $ 1,890,059 |
Interest income |  |  | 20,921 |  | $ 525 |  |  |  | 72,596 | $ 7,457 |
Positive Outcome Of Litigation [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded from Other Party | $ 97,500 | $ 62,200 |  |  |  |  |  |  |  |  |
Revenues |  |  |  | $ 99,900 |  | $ 55,800 | $ 99,900 | $ 55,800 |  |  |
Interest income |  |  |  | $ 7,200 |  | $ 6,400 | $ 7,200 | $ 6,400 |  |  |
Unfavorable Regulatory Action [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
U.S. government contract-related reserves |  |  | $ 16,600 |  |  |  |  |  | $ 16,600 |  | $ 12,900

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