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Long-Term Debt (Boyd Senior and Senior Subordinated Notes Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Debt Instrument [Line Items]
Payments of Debt Issuance Costs			$ 14,001	$ 289
Loss on early extinguishments of debt	$ 863	$ 71	32,333	1,129
Premium and Consent Fees Paid			$ 24,246	0
Senior Notes | 9.00% Senior Notes Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.00%		9.00%
Parent
Debt Instrument [Line Items]
Payments of Debt Issuance Costs			$ 14,001	84
Loss on early extinguishments of debt	$ 444	$ 0	30,452	$ 0
Premium and Consent Fees Paid			$ 24,246
Parent | Senior Notes | 6.875 % Senior Notes Due 2023
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.875%		6.875%
Payments of Debt Issuance Costs			$ 14,000
Parent | Senior Notes | 9.125% Senior Notes Due 2018
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.125%		9.125%		9.125%
Debt Instrument, Redemption Price, Percentage			104.563%
Premium and Consent Fees Paid			$ 24,000
Unamortized Debt Issuance Expense			$ 4,900
Parent | Senior Notes | 9.00% Senior Notes Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.00%		9.00%		9.00%

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Contractual interest rate for funds borrowed, under the debt agreement.

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