XML 63 R51.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Summary of Significant Accounting Policies (Preopening Expenses) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Preopening Expenses [Line Items] |  |  |
Project development, preopening and writedowns | $ (6,907) | $ (13,747) | $ (10,371)
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] |  |  |
Preopening Expenses [Line Items] |  |  |
Project development, preopening and writedowns |  |  | (12,304)
LVE |  |  |
Preopening Expenses [Line Items] |  |  |
Project development, preopening and writedowns |  |  | $ (1,933)

X
- Definition [Line Items] for Preopening Expenses [Table] + References No definition available. + Details
Name: | byd_PreopeningExpensesLineItems
Namespace Prefix: | byd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Project development, preopening and writedowns + References No definition available. + Details
Name: | byd_Projectdevelopmentpreopeningandwritedowns
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |