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Commitments and Contingencies (Details) - Over-Allotment Option | Jun. 11, 2025 USD ($) $ / shares shares
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Commitments and Contingencies |
Underwriters granted | 45 days
Maximum number of additional units offered for purchase | shares | 3,300,000
Cash underwriting discount | 2.00%
Underwriting discount paid In cash | $ 5,060,000
Deferred Underwriting Discount Rate | 3.50%
Deferred Underwriting Fees, Payable | $ 8,855,000
Deferred Underwriting Commission Per Unit | 0.30%
Allocable Deferred Underwriting Commission Per Unit | $ / shares | $ 0.05

X
- Definition Portion of deferred underwriting commission per unit that may be reallocated to eligible third parties assisting in the business combination. + References No definition available. + Details
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Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred underwriting commission payable per unit sold in the IPO upon completion of a business combination. + References No definition available. + Details
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Namespace Prefix: | BLUW_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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X
- Definition Percentage of gross proceeds from an initial public offering that is contractually payable to underwriters as a deferred underwriting fee upon the consummation of a business combination or similar transaction. + References No definition available. + Details
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- Definition Amount of deferred underwriting fees payable. + References No definition available. + Details
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Balance Type: | credit
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- Definition Maximum number of additional units offered to purchase by the underwriters during the option period. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Amount of underwriting discount paid in cash to underwriters at the closing of the initial public offering, representing a percentage of gross proceeds from units issued. + References No definition available. + Details
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- Definition Percentage of gross proceeds from the initial public offering paid to underwriters as an upfront cash underwriting discount. + References No definition available. + Details
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Namespace Prefix: | BLUW_
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Balance Type: | na
Period Type: | duration

X
- 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: | BLUW_UnderwritingOptionPeriod
Namespace Prefix: | BLUW_
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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- Details
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