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v3.26.1

COMMITMENTS AND CONTINGENCIES (Details) |  | 6 Months Ended
--- | --- | ---
Feb. 28, 2025 USD ($) $ / shares shares | Mar. 31, 2026 USD ($) item individual $ / shares shares
COMMITMENTS AND CONTINGENCIES |  |
Maximum number of demands for registration of securities | item |  | 3
Number of individuals appointed by sponsor to the board of directors | individual |  | 3
Underwriting cash discount per unit |  | $ 0.2
Cash underwriting fee | $ | $ 4,600,000 | $ 4,600,000
Deferred underwriting commissions per unit |  | $ 0.35
Deferred underwriting fee payable | $ |  | $ 8,050,000
Over allotment |  |
COMMITMENTS AND CONTINGENCIES |  |
Number of days granted to underwriter to exercise the option |  | 45 days
Option to purchase additional units | shares |  | 3,000,000
Number of units exercised | shares | 3,000,000 |
Purchase price | $ 10 |

X
- Definition Amount of deferred underwriting fee payable to underwriters. + References No definition available. + Details
Name: | rac_DeferredUnderwritingFee
Namespace Prefix: | rac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the deferred underwriting fee per unit. + References No definition available. + Details
Name: | rac_DeferredUnderwritingFeePerUnit
Namespace Prefix: | rac_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum number of demands for registration of securities. + References No definition available. + Details
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Namespace Prefix: | rac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represent the number of additional units purchased by the underwriter upon exercise the over allotment option. + References No definition available. + Details
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Namespace Prefix: | rac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represent the number of additional units to be purchased by the underwriter upon exercise the over allotment option. + References No definition available. + Details
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Namespace Prefix: | rac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of individuals that sponsor can nominate for appointment to board of directors. + References No definition available. + Details
Name: | rac_NumberOfIndividualsAppointedBySponsorToBoardOfDirectors
Namespace Prefix: | rac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow associated with the payment of underwriting fee. + References No definition available. + Details
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Namespace Prefix: | rac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the cash underwriting discount per unit. + References No definition available. + Details
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Namespace Prefix: | rac_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of days granted to underwriters in the initial public offering + References No definition available. + Details
Name: | rac_UnderwritingOptionPeriod
Namespace Prefix: | rac_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |