XML 125 R107.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Condensed Consolidating Financial Information (Narrative) (Details) | Dec. 31, 2017 | Dec. 31, 2016 | May 21, 2015 | Nov. 10, 2010
--- | --- | --- | --- | ---
For the year ending December 31, |  |  |  |
Subsidiaries, Ownership Percentage | 80.00% |  |  |
Boyd |  |  |  |
For the year ending December 31, |  |  |  |
Subsidiaries, Ownership Percentage |  |  |  | 100.00%
Boyd | Senior Notes | Senior Notes Due 2023 [Member] |  |  |  |
For the year ending December 31, |  |  |  |
Debt instrument, stated interest rate | 6.875% | 6.875% | 6.875% | 6.875%
Subsidiaries, Ownership Percentage |  |  | 100.00% |

X
- Definition Subsidiaries, Ownership Percentage + References No definition available. + Details
Name: | byd_SubsidiariesOwnershipPercentage
Namespace Prefix: | byd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConsolidatedEntitiesAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=byd_SeniorNotesDue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |