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STATEMENT OF CHANGES IN SHAREHOLDERS' DEFICIT (Parenthetical) | 10 Months Ended
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Sep. 30, 2025 shares
STATEMENT OF CHANGES IN SHAREHOLDERS' DEFICIT |
Sale of Private Placement units | 660,000

X
- Definition Number of new units issued during the period. + References No definition available. + Details
Name: | rac_UnitsIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | rac_
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