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STATEMENT OF OPERATIONS (Parenthetical)	10 Months Ended
	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

X

- Details

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