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Material accounting policies - Interest rate swaps (Details)	12 Months Ended
	Dec. 31, 2025
Material accounting policies
Maximum percentage of floating rate borrowings hedged	75.00%
Effectiveness of economic relationship for hedging purposes	100.00%

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- Definition

Effectiveness of economic relationship for hedging purposes, interest rate swaps

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The maximum hedging proportions of the floating rate borrowings.

+ References

No definition available.

+ Details

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Namespace Prefix:	bwlp_
Data Type:	dtr-types:percentItemType
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