XML 121 R103.htm IDEA: XBRL DOCUMENT v3.6.0.2

Noncontrolling Interest (Narrative) (Details)	Dec. 31, 2016	Nov. 10, 2010	Jan. 31, 2010
Noncontrolling Interest [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Parent Company [Member]
Noncontrolling Interest [Line Items]
Subsidiaries, Ownership Percentage		100.00%
Borgata
Noncontrolling Interest [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Ownership percentage by noncontrolling owners	50.00%
Borgata
Noncontrolling Interest [Line Items]
Equity Method Investment, Ownership Percentage			50.00%

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

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
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_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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

X

- Details

Name:	dei_LegalEntityAxis=byd_SubsidiaryBorgataMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_AffiliatedEntityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: