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Stockholders' Equity and Stock Incentive Plans (Classification of Costs) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Dividends Declared | $ 0.23 | $ 0.15 | $ 0
Share-based compensation expense | $ (25,379) | $ (17,413) | $ (15,518)
Gaming |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (490) | (363) | (428)
Food & beverage |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (94) | (69) | (82)
Room |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (44) | (33) | (39)
Selling, general and administrative |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (2,488) | (1,846) | (2,176)
Corporate expense |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (22,263) | (15,102) | (12,793)
Stock Options |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (154) | (1,193) | (1,974)
Restricted Stock Units (RSUs) |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (10,219) | (7,463) | (8,883)
Performance Stock Units (PSUs) |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | (13,647) | (7,381) | (3,353)
Career Shares |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Share-based compensation expense | $ (1,359) | $ (1,376) | $ (1,308)

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