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Long-Term Debt (Boyd Senior and Senior Subordinated Notes Narrative) (Details) |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 22, 2015 USD ($) | Jun. 08, 2012 | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Sep. 06, 2016 | Mar. 28, 2016 USD ($) | May 21, 2015 USD ($) | Nov. 10, 2010
For the year ending December 31, |  |  |  |  |  |  |  |  |
Interest |  |  | $ 19,858,000 | $ 33,407,000 |  |  |  |  |
Premium and Consent Fees Paid |  |  | 0 | (15,750,000) | $ (24,246,000) |  |  |  |
Payments of Debt Issuance Costs |  |  | $ 3,430,000 | 42,220,000 | 14,004,000 |  |  |  |
Subsidiaries, Ownership Percentage |  |  | 80.00% |  |  |  |  |  |
Gain Loss on Early Retirements of Debt |  |  | $ (1,582,000) | (42,364,000) | (40,733,000) |  |  |  |
Boyd |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Outstanding principal |  |  | 3,121,558,000 | 3,283,129,000 |  |  |  |  |
Premium and Consent Fees Paid |  |  |  | (15,750,000) | (24,246,000) |  |  |  |
Payments of Debt Issuance Costs |  |  | 3,430,000 | (42,220,000) | 14,004,000 |  |  |  |
Subsidiaries, Ownership Percentage |  |  |  |  |  |  |  |  | 100.00%
Gain Loss on Early Retirements of Debt |  |  | $ (1,582,000) | $ (28,356,000) | $ (30,829,000) |  |  |  |
Boyd | Senior Notes | 9.125% Senior Notes Due 2018 |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  |  |  |  |  |  |  | 9.125%
Boyd | Senior Notes | Senior Notes Due 2020 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  | 9.00% |  |  |  | 9.00% |  |  |
Debt instrument, redemption price, percentage |  | 104.50% |  |  |  |  |  |  |
Boyd | Senior Notes | Senior Notes Due 2023 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  | $ 750,000,000 |
Debt instrument, stated interest rate |  |  | 6.875% | 6.875% |  |  |  | 6.875% | 6.875%
Payments of Debt Issuance Costs | $ 14,000,000 |  |  |  |  |  |  |  |
Subsidiaries, Ownership Percentage |  |  |  |  |  |  |  | 100.00% |
Conditional repurchase price, % of principal |  |  |  |  |  |  |  | 101.00% |
Boyd | Senior Notes | Senior Notes Due 2023 [Member] | Prior to May 15, 2018 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage | 100.00% |  |  |  |  |  |  |  |
Boyd | Senior Notes | Senior Notes Due 2023 [Member] | After May 15, 2018 and Prior to 2021 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage | 105.156% |  |  |  |  |  |  |  |
Boyd | Senior Notes | Senior Notes Due 2026 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  | $ 750,000,000 |  |
Debt instrument, stated interest rate |  |  | 6.375% | 6.375% |  |  | 6.375% | 6.375% |
Deferred finance costs |  |  |  |  |  |  | $ 13,000,000.0 |  |
Subsidiaries, Ownership Percentage |  |  |  |  |  |  |  | 100.00% |
Conditional repurchase price, % of principal |  |  |  |  |  |  | 101.00% |  |
Boyd | Senior Notes | Senior Notes Due 2026 [Member] | Prior to April 1, 2021 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage | 100.00% |  |  |  |  |  |  |  |
Boyd | Senior Notes | Senior Notes Due 2026 [Member] | After April 15, 2021 and Prior to 2024 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Conditional repurchase price, % of principal |  |  |  |  |  |  | 103.188% |  |
Boyd | Senior Notes | Senior Notes Due 2026 [Member] | Prior to April 15, 2024 [Member] |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Conditional repurchase price, % of principal |  |  |  |  |  |  | 100.00% |  |
Boyd | Senior Secured Notes |  |  |  |  |  |  |  |  |
For the year ending December 31, |  |  |  |  |  |  |  |  |
Minimum required coverage ratio |  |  | 2.0 |  |  |  |  |  |

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