Amount of cash underwriting fee costs incurred during the period.

No definition available.

Name:	svac_CashUnderwritingFee
Namespace Prefix:	svac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of common stock shares that are transferred from one shareholder to another existing shareholder without being newly issued or canceled by the reporting entity. These transfers do not change total issued or outstanding shares but reflect changes in ownership between investors.

+ References

No definition available.

+ Details

Name:	svac_CommonStockSharesTransferredBetweenShareholders
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of underwriting fees payable classified as non-current.

+ References

No definition available.

+ Details

Name:	svac_DeferredUnderwritingFeeNonCurrent
Namespace Prefix:	svac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The per unit value of deferred fee entitled to underwriters on units sold excluding the units sold under the option to purchase to underwriters.

+ References

No definition available.

+ Details

Name:	svac_DeferredUnderwritingFeePerUnit
Namespace Prefix:	svac_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of contingent shares (typically common stock) that are issuable to sponsors, founders, or investors only upon the achievement of specified performance or market-based milestones, such as share price thresholds, revenue targets, or other contractual conditions defined in a business combination or equity agreement.

+ References

No definition available.

+ Details

Name:	svac_EarnoutSharesIssuableUponAchievementOfMilestones
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum number of additional units offered to purchase by the underwriters during the option period.

+ References

No definition available.

+ Details

Name:	svac_MaximumNumberOfAdditionalUnitsOfferedForPurchase
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum number of demands, excluding short form demands to be entitled by security holders.

+ References

No definition available.

+ Details

Name:	svac_MaximumNumberOfDemandsExcludingShortFormDemandsEntitledBySecurityHolders
Namespace Prefix:	svac_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The count of previously issued, granted, or reserved shares that are surrendered, canceled, or relinquished back to the issuer, typically without consideration or in exchange for another instrument.

+ References

No definition available.

+ Details

Name:	svac_NumberOfSharesForfeited
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares in a unit.

+ References

No definition available.

+ Details

Name:	svac_NumberOfSharesInUnit
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of warrants that are contractually surrendered, canceled, or waived by warrant holders, typically as part of a financing arrangement, restructuring, or business combination.

+ References

No definition available.

+ Details

Name:	svac_NumberOfWarrantsForfeited
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants in a unit.

+ References

No definition available.

+ Details

Name:	svac_NumberOfWarrantsInUnit
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period to exercise the over-allotment option, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	svac_OverAllotmentPeriod
Namespace Prefix:	svac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The proportion of an equity holder's ownership interest that is contractually surrendered, canceled, or given up as part of a corporate transaction, restructuring, or agreement.

+ References

No definition available.

+ Details

Name:	svac_PercentageOfEquityInterestForfeited
Namespace Prefix:	svac_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum threshold period of lock-up of the shares commencing after the completion of the initial business combination.

+ References

No definition available.

+ Details

Name:	svac_SharesLockUpPeriod
Namespace Prefix:	svac_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of units issued during the period.

+ References

No definition available.

+ Details

Name:	svac_StockIssuedDuringPeriodUnitsNewIssues
Namespace Prefix:	svac_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of expense recognized related to subscription agreements with investors, including legal, administrative, contractual, or financing-related costs associated with the execution or settlement of subscription arrangements.

+ References

No definition available.

+ Details

Name:	svac_SubscriptionAgreementExpense
Namespace Prefix:	svac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount of liabilities arising from subscription agreements with investors, including obligations related to the issuance, settlement, refund, or other contractual terms associated with subscribed securities not yet recognized as permanent equity.

+ References

No definition available.

+ Details

Name:	svac_SubscriptionAgreementLiability
Namespace Prefix:	svac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Price of a single unit issued during the period.

+ References

No definition available.

+ Details

Name:	svac_UnitsIssuePricePerShare
Namespace Prefix:	svac_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: 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 2: 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

Reference 3: 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

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-5

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesIssuedPricePerShare
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

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=svac_SponsorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=svac_FounderShareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=svac_WorkingCapitalLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=svac_PrivateInvestmentInPublicEquityFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=svac_PrivatePlacementWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS (Details)			3 Months Ended	10 Months Ended
COMMITMENTS (Details)	Jan. 21, 2026 USD ($) $ / shares shares	Sep. 05, 2025 USD ($) $ / shares shares	Mar. 31, 2026 USD ($) item shares	Dec. 31, 2025 USD ($) item shares
Subsidiary, Sale of Stock [Line Items]
Maximum number of demands security holders entitled \| item			3	3
Cash underwriting fee \| $		$ 4,600,000
Deferred underwriting fee per unit \| $ / shares		$ 0.4
Deferred Underwriting Fee \| $		$ 9,200,000	$ 9,200,000	$ 9,200,000
Subscription agreement \| $			425,184,274
Subscription agreement expense \| $			$ 425,184,274
Sponsor
Subsidiary, Sale of Stock [Line Items]
Exercise price per share \| $ / shares	$ 0.9
Founder shares \| Sponsor
Subsidiary, Sale of Stock [Line Items]
Percentage of equity interest forfeited	15.00%
Sponsor earnout shares	1,000,000
Transferred founder shares	1,250,000
Shares lock up period	6 months
Working Capital Loan \| Sponsor
Subsidiary, Sale of Stock [Line Items]
Convertible working capital loans \| $	$ 1,500,000
Common Class B \| Founder shares
Subsidiary, Sale of Stock [Line Items]
Number of shares forfeited	1,000,000
Underwriters over-allotment option
Subsidiary, Sale of Stock [Line Items]
Over allotment period			45 days	45 days
Maximum number of additional units offered for purchase			3,000,000	3,000,000
Number of units issued		3,000,000
Private Investment in Public Equity Financing
Subsidiary, Sale of Stock [Line Items]
Number of units issued	10,556,367
Price per unit issued \| $ / shares	$ 10.2
Number of shares in a unit	1
Number of warrants in a unit	1
Exercise price \| $ / shares	$ 12
Private Placement Warrants \| Underwriters over-allotment option
Subsidiary, Sale of Stock [Line Items]
Percentage of equity interest forfeited	15.00%
Number of warrants forfeited	383,333