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: