v2.4.0.6

Commitments and Contingencies (Borgata Leases) (Details) (Borgata) | 12 Months Ended
--- | ---
Dec. 31, 2012 acre
Operating Leased Assets [Line Items] |
Owned land, acres | 26
Land subject to ground leases | 20
Land Underlying Parking Garage |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 2
Land Underlying Public Space Expansion |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 4
Land Underlying Rooms Expansion |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 2
Land Underlying Parking Structure |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 3
Land Comprising Surface Parking Lot |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 8
Termination of lease, period of time after notice given | 6 months
Undeveloped Land Parcel |
Operating Leased Assets [Line Items] |
Land subject to ground leases | 1
Alternative Parking Structure Ground Lease |
Operating Leased Assets [Line Items] |
Responsibility for property taxes and monthly rent, term | 18 months

X
- Definition Land Owned (Acres) + References No definition available. + Details
Name: | byd_LandOwnedAcres
Namespace Prefix: | byd_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Operating Leases, Termination of Lease, Period of Time After Notice Given + References No definition available. + Details
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Namespace Prefix: | byd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Responsibility for Property Taxes and Monthly Rent, Term + References No definition available. + Details
Name: | byd_ResponsibilityForPropertyTaxesAndMonthlyRentTerm
Namespace Prefix: | byd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Area of land subject to a ground lease. + References No definition available. + Details
Name: | us-gaap_LandSubjectToGroundLeases
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_OperatingLeasedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration