XML 64 R52.htm IDEA: XBRL DOCUMENT
v3.19.1

Stockholders' Equity and Stock Incentive Plans RSU, PSU and Career Shares (Details) - Common Stock | 3 Months Ended
--- | ---
Mar. 31, 2019 shares
PSU - Dec 2014 [Domain] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Stock Issued During Period, Shares, Performance Stock Award, Gross | 395,964
Shares to be issued to settle PSUs | 1.67
Stock Issued During Period, Shares, Performance Stock Award, Taxes | 125,004
Stock Issued During Period, Shares, Performance Stock Award, Net | 270,960
PSU - Nov 2013 [Domain] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Stock Issued During Period, Shares, Performance Stock Award, Gross | 486,805
Shares to be issued to settle PSUs | 1.57
Stock Issued During Period, Shares, Performance Stock Award, Taxes | 149,268
Stock Issued During Period, Shares, Performance Stock Award, Net | 337,537

X
- Definition Shares to be issued to settle PSUs + References No definition available. + Details
Name: | byd_SharestobeissuedtosettlePSUs
Namespace Prefix: | byd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares, Performance Stock Award, Gross + References No definition available. + Details
Name: | byd_StockIssuedDuringPeriodSharesPerformanceStockAwardGross
Namespace Prefix: | byd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares, Performance Stock Award, Net + References No definition available. + Details
Name: | byd_StockIssuedDuringPeriodSharesPerformanceStockAwardNet
Namespace Prefix: | byd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares, Performance Stock Award, Taxes + References No definition available. + Details
Name: | byd_StockIssuedDuringPeriodSharesPerformanceStockAwardTaxes
Namespace Prefix: | byd_
Data Type: | xbrli:sharesItemType
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=byd_PSUDec2014Domain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=byd_PSUNov2013Domain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |