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Note 14 - Segment Information - Reconciliation of Capital Expenditures (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Capital expenditures | $ 407,730 | $ 386,729 | $ 271,677
Change in Accrued Capital Expenditure Additions | (7,330) | (12,779) | (2,522)
Cash-Based Capital Expenditures | 400,400 | 373,950 | 269,155
Las Vegas Locals [Member] |  |  |
Capital expenditures | 71,182 | 82,918 | 37,339
Downtown Las Vegas [Member] |  |  |
Capital expenditures | 12,040 | 42,233 | 52,423
Midwest and South [Member] |  |  |
Capital expenditures | 228,457 | 200,577 | 109,475
Online [Member] |  |  |
Capital expenditures | 42 | 224 | 462
Managed and Other [Member] |  |  |
Capital expenditures | 5,050 | 5,001 | 4,104
Corporate Segment [Member] |  |  |
Capital expenditures | $ 90,959 | $ 55,776 | $ 67,874

X
- Definition The amount of capital expenditures. + References No definition available. + Details
Name: | byd_CapitalExpenditures
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of cash based capital expenditures. + References No definition available. + Details
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Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of increase (decrease) in accrued capital expenditure additions. + References No definition available. + Details
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Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |