XML 100 R80.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Long-Term Debt (Interest and Fees - Narrative) (Details) - Boyd | 12 Months Ended
--- | ---
Dec. 31, 2015
Bank Credit Facility | Federal Funds Rate |
Line of Credit Facility [Line Items] |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum | 0.50%
Bank Credit Facility | Eurodollar |
Line of Credit Facility [Line Items] |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum | 1.00%
Revolving Credit Facility, Swing Loan and Term Loan A | LIBOR | Minimum |
Line of Credit Facility [Line Items] |
Applicable margin | 2.00%
Revolving Credit Facility, Swing Loan and Term Loan A | LIBOR | Maximum |
Line of Credit Facility [Line Items] |
Applicable margin | 3.00%
Revolving Credit Facility, Swing Loan and Term Loan A | Base Rate | Minimum |
Line of Credit Facility [Line Items] |
Applicable margin | 1.00%
Revolving Credit Facility, Swing Loan and Term Loan A | Base Rate | Maximum |
Line of Credit Facility [Line Items] |
Applicable margin | 2.00%
Revolving Credit Facility | Bank Credit Facility | Minimum |
Line of Credit Facility [Line Items] |
Commitment fee percentage on unused portion of credit facility | 0.25%
Revolving Credit Facility | Bank Credit Facility | Maximum |
Line of Credit Facility [Line Items] |
Commitment fee percentage on unused portion of credit facility | 0.50%
Term Loan B | Base Rate |
Line of Credit Facility [Line Items] |
Applicable margin | 2.00%
Term Loan B | Eurodollar | Minimum |
Line of Credit Facility [Line Items] |
Applicable margin | 1.00%
Term Loan B | Eurodollar | Maximum |
Line of Credit Facility [Line Items] |
Applicable margin | 3.00%

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum 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)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
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
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | us-gaap_VariableRateAxis=byd_FederalFundsRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=byd_RevolvingCreditFacilitySwingLoanandTermLoanAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=byd_TermLoanBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |