XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Intangible Assets (Summary of Amortizing and Indefinite-Lived Intangibles) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 1,205,865 | $ 1,205,879
Intangible assets, cumulative amortization | (167,886) | (155,951)
Intangible assets, cumulative impairment | (159,874) | (159,874)
Intangible assets, net | 878,105 | 890,054
Amortizing intangibles: |  |
Gross carrying value | 203,043 | 203,043
Cumulative amortization | (133,926) | (121,991)
Cumulative impairment losses | 0 | 0
Intangible assets, net | 69,117 | 81,052
Indefinite lived intangible assets: |  |
Gross carrying value | 1,002,822 | 1,002,836
Cumulative amortization | (33,960) | (33,960)
Cumulative impairment losses | (159,874) | (159,874)
Intangible assets, net | $ 808,988 | $ 809,002
Customer Relationships [Member] |  |
Amortizing intangibles: |  |
Weighted average life | 1 year 1 month 5 days | 1 year 11 months
Gross carrying value | $ 136,300 | $ 136,300
Cumulative amortization | (121,147) | (109,994)
Cumulative impairment losses | 0 | 0
Intangible assets, net | $ 15,153 | $ 26,306
Off-Market Favorable Lease [Member] |  |
Amortizing intangibles: |  |
Weighted average life | 31 years 8 months 5 days | 32 years 4 months 24 days
Gross carrying value | $ 45,370 | $ 45,370
Cumulative amortization | (12,779) | (11,997)
Cumulative impairment losses | 0 | 0
Intangible assets, net | 32,591 | 33,373
Development Agreement |  |
Amortizing intangibles: |  |
Gross carrying value | 21,373 | 21,373
Cumulative amortization | 0 | 0
Cumulative impairment losses | 0 | 0
Intangible assets, net | 21,373 | 21,373
Trademarks |  |
Indefinite lived intangible assets: |  |
Gross carrying value | 129,487 | 129,501
Cumulative amortization | 0 | 0
Cumulative impairment losses | (3,500) | (3,500)
Intangible assets, net | 125,987 | 126,001
Gaming License Rights |  |
Indefinite lived intangible assets: |  |
Gross carrying value | 873,335 | 873,335
Cumulative amortization | (33,960) | (33,960)
Cumulative impairment losses | (156,374) | (156,374)
Intangible assets, net | $ 683,001 | $ 683,001

X
- Definition Cumulative Impairment of Intangible Assets (Excluding Goodwill) + References No definition available. + Details
Name: | byd_CumulativeImpairmentOfIntangibleAssetsExcludingGoodwill
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cumulative Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) + References No definition available. + Details
Name: | byd_CumulativeImpairmentOfIntangibleAssetsIndefiniteLivedExcludingGoodwill
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Finite-Lived Intangible Assets, Cumulative Impairment Losses + References No definition available. + Details
Name: | byd_FiniteLivedIntangibleAssetsCumulativeImpairmentLosses
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Indefinite-Lived Intangible Assets, Cumulative Previously Recognized Amortization + References No definition available. + Details
Name: | byd_IndefiniteLivedIntangibleAssetsCumulativePreviouslyRecognizedAmortization
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Indefinite-Lived Intangible Assets, Gross + References No definition available. + Details
Name: | byd_IndefiniteLivedIntangibleAssetsGross
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Intangible Assets, Accumulated Amortization + References No definition available. + Details
Name: | byd_IntangibleAssetsAccumulatedAmortization
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Intangible Assets [Line Items] + References No definition available. + Details
Name: | byd_IntangibleAssetsLineItems
Namespace Prefix: | byd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsGrossExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OffMarketFavorableLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=byd_DevelopmentAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |