Percentage of adjustment of exercise price of warrants based on market value and newly issued price.

No definition available.

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- Definition

The minimum threshold period during which a written notice is required for redemption of warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Class of warrant or right redemption of warrants or rights threshold trading days.

+ References

No definition available.

+ Details

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- Definition

Redemption price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

+ Details

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Data Type:	dtr:perShareItemType
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Period Type:	duration

- Definition

The period of time after completion of a business combination in which the reporting entity is required to file a registration statement with the SEC.

+ References

No definition available.

+ Details

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Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum threshold period for registration statement to become effective after business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	rtac_MaximumThresholdPeriodForRegistrationStatementToBecomeEffectiveAfterBusinessCombination
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- Definition

The threshold number of specified trading period determining volume weighted average trading price, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of gross proceeds on total equity proceeds.

+ References

No definition available.

+ Details

Name:	rtac_PercentageOfGrossProceedsOnTotalEquityProceeds
Namespace Prefix:	rtac_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Redemption period.

+ References

No definition available.

+ Details

Name:	rtac_RedemptionPeriod
Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold number of business days before sending notice of redemption to warrant holders.

+ References

No definition available.

+ Details

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Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of time which must elapse after completion of a business combination before the Sponsor can transfer, assign or sell any Founder Shares unless other specified conditions are met.

+ References

No definition available.

+ Details

Name:	rtac_ThresholdPeriodForNotToTransferAssignOrSellAnySharesOrWarrantsAfterCompletionOfInitialBusinessCombination
Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The issuance price of additional capital which would trigger an adjustment in the exercise price of the warrant.

+ References

No definition available.

+ Details

Name:	rtac_WarrantExercisePriceAdjustmentTrigger
Namespace Prefix:	rtac_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum trading price for the reporting entity's stock which must be achieved as a condition for redemption of the warrant.

+ References

No definition available.

+ Details

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Namespace Prefix:	rtac_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The warrants exercisable term from the closing of the initial public offering, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	rtac_WarrantsAndRightsOutstandingExercisableTermFromClosingOfInitialPublicOffering
Namespace Prefix:	rtac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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Data Type:	na
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- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
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Warrants (Details) - $ / shares	6 Months Ended
Warrants (Details) - $ / shares	Jun. 30, 2026	Dec. 31, 2025	May 16, 2025
Warrants [Line Items]
Warrants outstanding	15,896,591	15,896,591
Public warrants exercisable term from the closing of the initial public offering	12 months
Warrants expire	5 years
Event later business days	20 days
Maximum threshold period for registration statement to become effective after business combination	60 days
Warrant price per share	$ 18
Notice of redemption	30 days
Total equity proceeds	60.00%
Market value	115.00%
Public Warrants [Member]
Warrants [Line Items]
Warrants outstanding	12,075,000	12,075,000
Minimum threshold written notice period for redemption of public warrants	30 days
Warrant price per share	$ 18
Exercise price of warrants	11.5
Issue price per share	$ 9.2
Private Placement Warrants [Member]
Warrants [Line Items]
Warrants outstanding	3,821,591	3,821,591
Threshold period for not to transfer assign or sell any shares or warrants after completion of initial business combination	30 days
Warrant [Member]
Warrants [Line Items]
Redemption price per public warrant	$ 0.01
Threshold trading days for redemption of public warrants	10 days
Class A Ordinary Shares [Member]
Warrants [Line Items]
Trading days determining volume weighted average price	20 days
Issue price per share	$ 9.2
Class A Ordinary Shares [Member] \| Public Warrants [Member]
Warrants [Line Items]
Trading days	20 days
Market value	180.00%
Threshold period for not to transfer assign or sell any shares or warrants after completion of initial business combination	10 days
Class A Ordinary Shares [Member] \| Warrant [Member]
Warrants [Line Items]
Warrant price per share	$ 18
Exercise price of warrants			$ 11.5