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Note 15 - Related Party Transactions (Details Textual) | Dec. 31, 2024
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Ownership Percentage | 27.00%

X
- Definition Percentage of ownership in the company. + References No definition available. + Details
Name: | byd_OwnershipPercentage
Namespace Prefix: | byd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant