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v3.25.3

STATEMENT OF OPERATIONS (Parenthetical) | 10 Months Ended
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Sep. 30, 2025 shares
Class B ordinary shares |
Number of shares subject to forfeiture | 750,000

X
- Definition Represents the number of shares subject to forfeiture. + References No definition available. + Details
Name: | rac_NumberOfSharesSubjectToForfeiture
Namespace Prefix: | rac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |