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Description Of The Business - Summary of Reconciles the Elements of the Business Combination to the Condensed Consolidated Statement (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Cash | $ 310,330 |
Less: transaction costs and advisory fees paid | (49,075) |
Net proceeds from Rocket Lab Business Combination | 728,255 |
Less: Accrued transaction costs | (27) |
Plus: Prepaid expenses assumed as part of Business Combination | 219 |
Less: Warrants assumed as part of Business Combination | (48,149) |
Less: Repurchase of Management Shares | (30,358) |
Reverse recapitalization, net of transaction costs | 649,940 |
Pipe Investment [Member] |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Cash | $ 467,000 |

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