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Condensed Statements of Changes in Shareholders' Equity (Parenthetical) | 5 Months Ended
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Dec. 31, 2020 shares
Statement of Stockholders' Equity [Abstract] |
Sale of units, net of underwriting discounts and offering costs | 32,000,000

X
- Definition Sale of units net of underwriting discounts and offering costs. + References No definition available. + Details
Name: | rklb_SaleOfUnitsNetOfUnderwritingDiscountsAndOfferingCosts
Namespace Prefix: | rklb_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration