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Condensed Consolidating Financial Information (Balance Sheets) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | --- | --- | ---
Assets |  |  |  |
Other current assets | $ 123,955 | $ 114,085 |  |
Property and equipment, net | 2,556,116 | 2,605,169 |  |
Investments in subsidiaries | 0 | 0 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 81,626 | 49,205 |  |
Intangible assets, net | 846,616 | 881,954 |  |
Goodwill, net | 888,224 | 826,476 |  |
Total assets | 4,655,369 | 4,670,751 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 23,981 | 30,336 |  |
Other current liabilities | 363,243 | 335,168 |  |
Accumulated losses of subsidiaries in excess of investment | 0 | 0 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 3,045,586 | 3,199,119 |  |
Other long-term liabilities | 188,449 | 172,002 |  |
Total Boyd Gaming Corporation stockholders' equity | 1,034,110 | 934,076 |  |
Noncontrolling interest | 0 | 50 |  |
Total stockholders' equity (deficit) | 1,034,110 | 934,126 | $ 923,026 | $ 508,011
Total liabilities and stockholders' equity | 4,655,369 | 4,670,751 |  |
Parent |  |  |  |
Assets |  |  |  |
Other current assets | 77,853 | 78,915 |  |
Property and equipment, net | 71,678 | 73,180 |  |
Investments in subsidiaries | 4,779,506 | 4,505,897 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 14,224 | 13,598 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | 4,943,220 | 4,672,802 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 23,894 | 30,250 |  |
Other current liabilities | 127,641 | 93,762 |  |
Accumulated losses of subsidiaries in excess of investment | 0 | 0 |  |
Intercompany payable | 817,198 | 521,002 |  |
Long-term debt, net of current maturities and debt issuance costs | 3,045,168 | 3,198,613 |  |
Other long-term liabilities | (104,791) | (104,901) |  |
Total Boyd Gaming Corporation stockholders' equity |  | 934,076 |  |
Noncontrolling interest |  | 0 |  |
Total stockholders' equity (deficit) | 1,034,110 | 934,076 |  |
Total liabilities and stockholders' equity | 4,943,220 | 4,672,802 |  |
Guarantor Subsidiaries |  |  |  |
Assets |  |  |  |
Other current assets | 34,533 | 26,715 |  |
Property and equipment, net | 2,456,577 | 2,503,127 |  |
Investments in subsidiaries | 0 | 139,465 |  |
Intercompany receivable | 1,852,237 | 1,491,017 |  |
Other assets, net | 29,030 | 31,899 |  |
Intangible assets, net | 822,557 | 857,894 |  |
Goodwill, net | 887,442 | 825,694 |  |
Total assets | 6,238,274 | 6,065,175 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 87 | 86 |  |
Other current liabilities | 208,632 | 196,391 |  |
Accumulated losses of subsidiaries in excess of investment | 32,066 | 0 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 418 | 506 |  |
Other long-term liabilities | 314,965 | 298,624 |  |
Total Boyd Gaming Corporation stockholders' equity |  | 5,569,568 |  |
Noncontrolling interest |  | 0 |  |
Total stockholders' equity (deficit) | 5,682,106 | 5,569,568 |  |
Total liabilities and stockholders' equity | 6,238,274 | 6,065,175 |  |
Non-Guarantor Subsidiaries (100% Owned) |  |  |  |
Assets |  |  |  |
Other current assets | 12,563 | 8,908 |  |
Property and equipment, net | 27,861 | 28,862 |  |
Investments in subsidiaries | 3,385 | 0 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 38,372 | 3,708 |  |
Intangible assets, net | 24,059 | 24,060 |  |
Goodwill, net | 782 | 782 |  |
Total assets | 109,997 | 69,606 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 0 | 0 |  |
Other current liabilities | 27,201 | 46,444 |  |
Accumulated losses of subsidiaries in excess of investment | 0 | 8,257 |  |
Intercompany payable | 1,035,525 | 968,811 |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | (21,725) | (21,721) |  |
Total Boyd Gaming Corporation stockholders' equity |  | (932,185) |  |
Noncontrolling interest |  | 0 |  |
Total stockholders' equity (deficit) | (931,004) | (932,185) |  |
Total liabilities and stockholders' equity | 109,997 | 69,606 |  |
Non-Guarantor Subsidiaries (Not 100% Owned) |  |  |  |
Assets |  |  |  |
Other current assets | 0 | 0 |  |
Property and equipment, net | 0 | 0 |  |
Investments in subsidiaries | 0 | 0 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 0 | 0 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | 0 | 0 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 0 | 0 |  |
Other current liabilities | 0 | 0 |  |
Accumulated losses of subsidiaries in excess of investment | 0 | 0 |  |
Intercompany payable | 0 | 254 |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | 0 | 0 |  |
Total Boyd Gaming Corporation stockholders' equity |  | (254) |  |
Noncontrolling interest |  | 0 |  |
Total stockholders' equity (deficit) | 0 | (254) |  |
Total liabilities and stockholders' equity | 0 | 0 |  |
Eliminations |  |  |  |
Assets |  |  |  |
Other current assets | (994) | (453) |  |
Property and equipment, net | 0 | 0 |  |
Investments in subsidiaries | (4,782,891) | (4,645,362) |  |
Intercompany receivable | (1,852,237) | (1,491,017) |  |
Other assets, net | 0 | 0 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | (6,636,122) | (6,136,832) |  |
Liabilities and Stockholders’ Equity |  |  |  |
Current maturities of long-term debt | 0 | 0 |  |
Other current liabilities | (231) | (1,429) |  |
Accumulated losses of subsidiaries in excess of investment | (32,066) | (8,257) |  |
Intercompany payable | (1,852,723) | (1,490,067) |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | 0 | 0 |  |
Total Boyd Gaming Corporation stockholders' equity |  | (4,637,129) |  |
Noncontrolling interest |  | 50 |  |
Total stockholders' equity (deficit) | (4,751,102) | (4,637,079) |  |
Total liabilities and stockholders' equity | $ (6,636,122) | $ (6,136,832) |  |

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