XML 84 R65.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Intangible Assets (Summary of Amortizing and Indefinite-Lived Intangibles) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Intangible Assets [Line Items] |  |  |  |
Intangible assets, gross | $ 1,705,575 | $ 1,067,725 |  |
Intangible assets, cumulative amortization | (54,631) | (40,505) |  |
Intangible assets, cumulative impairment | (184,274) | (184,274) |  |
Intangible assets, net | 1,466,670 | 842,946 | $ 881,954 | $ 890,054
Amortizing intangibles: |  |  |  |
Gross carrying value | 156,503 | 42,503 |  |
Cumulative amortization | (20,671) | (6,545) |  |
Cumulative impairment losses | 0 | 0 |  |
Intangible assets, net | $ 135,832 | 35,958 |  |
Impairment of Intangible Assets, Indefinite-Lived | no |  |  |
Indefinite lived intangible assets: |  |  |  |
Gross carrying value | $ 1,549,072 | 1,025,222 |  |
Cumulative amortization | (33,960) | (33,960) |  |
Cumulative impairment losses | (184,274) | (184,274) |  |
Intangible assets, net | $ 1,330,838 | $ 806,988 |  |
Customer Relationships |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 7 years 3 months 24 days | 5 years 2 months 13 days |  |
Gross carrying value | $ 65,400 | $ 9,400 |  |
Cumulative amortization | (15,113) | (3,470) |  |
Cumulative impairment losses | 0 | 0 |  |
Intangible assets, net | $ 50,287 | $ 5,930 | 19,462 | 26,306
Favorable Lease Rates |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 37 years | 38 years |  |
Gross carrying value | $ 11,730 | $ 11,730 |  |
Cumulative amortization | (3,302) | (3,075) |  |
Cumulative impairment losses | 0 | 0 |  |
Intangible assets, net | $ 8,428 | $ 8,655 | 32,331 | 33,373
Development Agreement |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 0 years | 0 years |  |
Gross carrying value | $ 21,373 | $ 21,373 |  |
Cumulative amortization | 0 | 0 |  |
Cumulative impairment losses | 0 | 0 |  |
Intangible assets, net | $ 21,373 | 21,373 | 21,373 | 21,373
Host Relationships [Domain] |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 14 years 4 months 24 days |  |  |
Gross carrying value | $ 58,000 |  |  |
Cumulative amortization | (2,256) |  |  |
Cumulative impairment losses | 0 |  |  |
Intangible assets, net | 55,744 | 0 | 0 | 0
Trademarks |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 0 | 0 |  |
Indefinite lived intangible assets: |  |  |  |
Gross carrying value | 207,387 | 151,887 |  |
Cumulative amortization | 0 | 0 |  |
Cumulative impairment losses | (4,300) | (4,300) |  |
Intangible assets, net | 203,087 | 147,587 | 149,387 | 126,001
Gaming License Rights |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 0 | 0 | 23,600 |
Indefinite lived intangible assets: |  |  |  |
Gross carrying value | 1,341,685 | 873,335 |  |
Cumulative amortization | (33,960) | (33,960) |  |
Cumulative impairment losses | (179,974) | (179,974) |  |
Intangible assets, net | $ 1,127,751 | $ 659,401 | $ 659,401 | $ 683,001
Minimum | Favorable Lease Rates |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 41 years |  |  |
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract] |  |  |  |
Valuation assumptions, term | 41 years |  |  |
Maximum | Favorable Lease Rates |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 52 years |  |  |
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract] |  |  |  |
Valuation assumptions, term | 52 years |  |  |
Maximum | Host Relationships [Domain] |  |  |  |
Amortizing intangibles: |  |  |  |
Weighted average life | 15 years |  |  |

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 Impairment of Intangible Assets, Indefinite-Lived + References No definition available. + Details
Name: | byd_ImpairmentofIntangibleAssetsIndefiniteLived
Namespace Prefix: | byd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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 Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract] + References No definition available. + Details
Name: | byd_IndefiniteLivedIntangibleAssetsValuationAssumptionsAbstract
Namespace Prefix: | byd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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, Gross + References No definition available. + Details
Name: | byd_IntangibleAssetsGross
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 Intangible Assets, Valuation Assumptions, Term + References No definition available. + Details
Name: | byd_IntangibleAssetsValuationAssumptionsTerm
Namespace Prefix: | byd_
Data Type: | xbrli:durationItemType
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&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 impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&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 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://fasb.org/us-gaap/role/ref/legacyRef -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=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + 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_FiniteLivedIntangibleAssetsByMajorClassAxis=byd_HostRelationshipsDomain
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: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |