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Condensed Consolidated Statement of Changes in Stockholders' Equity - Entity [Domain] - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss), Net | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | ---
Balances, January 1, 2015 at Dec. 31, 2013 | $ 650,437 | $ 1,082 | $ 902,496 | $ (432,074) | $ (1,517) | $ 180,450
Balance, shares at Dec. 31, 2013 |  | 108,155,002 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | (5,887) | $ 0 | 0 | (5,513) | 0 | (374)
Comprehensive income attributable to Boyd | 610 | 0 | 0 | 0 | 610 | 0
Stock options exercised | 904 | $ 2 | 902 | 0 | 0 | 0
Release of restricted stock units, net of tax |  | 107,405 |  |  |  |
Release of performance stock units, net of tax | (201) | $ 0 | (201) | 0 | 0 | 0
Share-based compensation costs |  | 121,329 |  |  |  |
Share-based compensation costs | 9,905 | $ 0 | 9,905 | 0 | 0 | 0
Capital Investment Attributable to Noncontrolling Interest | 30 | 0 | 0 | 0 | 0 | 30
Balances, June 30, 2015 at Jun. 30, 2014 | 655,798 | $ 1,084 | 913,102 | (437,587) | (907) | 180,106
Balance, shares at Jun. 30, 2014 |  | 108,383,736.000 |  |  |  |
Balances, January 1, 2015 at Dec. 31, 2014 | $ 438,087 | $ 1,093 | 922,112 | (485,115) | (53) | 50
Balance, shares at Dec. 31, 2014 | 109,277,060 | 109,277,060 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) | $ 28,678 | $ 0 | 0 | 28,678 | 0 | 0
Comprehensive income attributable to Boyd | (763) | 0 | 0 | 0 | (763) | 0
Stock options exercised | 4,593 | $ 6 | 4,587 | 0 | 0 | 0
Release of restricted stock units, net of tax |  | 81,058 |  |  |  |
Release of performance stock units, net of tax | (47) | $ 1 | (48) | 0 | 0 | 0
Share-based compensation costs |  | 632,972 |  |  |  |
Performance Stock, Shares Issued Net of Shares for Tax Withholdings |  | 481,749 |  |  |  |
Stock Issued During Period, Value, Performance Stock Award, Net of Forfeitures | (2,446) | $ 5 | (2,451) | 0 | 0 | 0
Share-based compensation costs | 6,367 | 0 | 6,367 | 0 | 0 | 0
Balances, June 30, 2015 at Jun. 30, 2015 | $ 474,469 | $ 1,105 | $ 930,567 | $ (456,437) | $ (816) | $ 50
Balance, shares at Jun. 30, 2015 | 110,472,839 | 110,472,839.000 |  |  |  |

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