Price per warrant issued as equity security.

No definition available.

Name:	drdb_ClassOfWarrantOrRightPricePerWarrant
Namespace Prefix:	drdb_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants sold during the period.

+ References

No definition available.

+ Details

Name:	drdb_ClassOfWarrantOrRightsNumberOfWarrantsSold
Namespace Prefix:	drdb_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the threshold percentage of Obligation to redeem Public Shares if entity does not complete a Business Combination.

+ References

No definition available.

+ Details

Name:	drdb_PercentageObligationToRedeemPublicSharesIfEntityDoesNotCompleteBusinessCombination
Namespace Prefix:	drdb_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The threshold period for not to transfer, assign or sell any of the shares or warrants, after the completion of the initial business combination.

+ References

No definition available.

+ Details

Name:	drdb_ThresholdPeriodForNotToTransferAssignOrSellAnySharesOrWarrantsAfterCompletionOfInitialBusinessCombination
Namespace Prefix:	drdb_
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

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

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

+ Details

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

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

- 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

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=drdb_UnderwriterMember
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:

PRIVATE PLACEMENT (Details) - USD ($)				3 Months Ended	6 Months Ended
PRIVATE PLACEMENT (Details) - USD ($)	Jan. 27, 2025	Jan. 23, 2025	Dec. 16, 2024	Mar. 31, 2025	Jun. 30, 2025	Dec. 31, 2025
PRIVATE PLACEMENT
Number of shares issued upon conversion of each warrant			1			1
Exercise price of warrant			$ 11.5
Aggregate purchase price					$ 750,000
Expiration term for warrants			5 years
Obligation to redeem Public Shares if entity does not complete a Business Combination (as a percent)			100.00%
Private placement warrants
PRIVATE PLACEMENT
Number of warrants issued (in shares)		750,000		750,000
Price per warrant (in dollars per share)		$ 1
Aggregate purchase price		$ 750,000
Private placement warrants \| Private Placement
PRIVATE PLACEMENT
Number of warrants issued (in shares)			7,385,000
Number of shares issued upon conversion of each warrant			1
Exercise price of warrant			$ 11.5
Price per warrant (in dollars per share)			$ 1
Aggregate purchase price			$ 7,385,000
Threshold period for not to transfer, assign or sell any of their shares or warrants after the completion of the initial business combination			30 days
Expiration term for warrants			5 years
Private placement warrants \| Private Placement \| Class A ordinary shares
PRIVATE PLACEMENT
Number of shares issued upon conversion of each warrant			1
Private placement warrants \| Private Placement \| Sponsor
PRIVATE PLACEMENT
Number of warrants issued (in shares)			4,885,000
Private placement warrants \| Private Placement \| Underwriter
PRIVATE PLACEMENT
Number of warrants issued (in shares)			2,500,000
Private placement warrants \| Over-allotments
PRIVATE PLACEMENT
Number of warrants issued (in shares)	750,000
Exercise price of warrant	$ 11.5
Price per warrant (in dollars per share)	$ 1
Aggregate purchase price	$ 750,000
Private placement warrants \| Over-allotments \| Class A ordinary shares
PRIVATE PLACEMENT
Number of shares issued upon conversion of each warrant	1
Private placement warrants \| Over-allotments \| Sponsor
PRIVATE PLACEMENT
Number of warrants issued (in shares)	375,000
Private placement warrants \| Over-allotments \| Underwriter
PRIVATE PLACEMENT
Number of warrants issued (in shares)	375,000