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Summary of Significant Accounting Policies (Details Textual) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Mar. 12, 2019 | Apr. 01, 2018 | Nov. 30, 2017 | Dec. 31, 2018 | Sep. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Nov. 07, 2018
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment and other long-lived assets, impairment charges |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 |
Decrease in depreciation expense |  |  |  |  |  |  |  | (6,400,000) |  |  |
Increase in net income |  |  |  |  |  |  |  | $ 900,000 |  |  |
Increase in loss per share basic |  |  |  |  |  |  |  | $ 0.03 |  |  |
Increase in loss per share diluted |  |  |  |  |  |  |  | $ 0.03 |  |  |
Derivative instrument, notional amount |  |  | $ 650,000,000 |  |  |  |  |  |  |  |
Derivative instrument, purchase price |  |  | $ 3,100,000 |  |  |  |  |  |  |  |
Derivative instrument, expiration date |  |  | Dec. 31, 2020 |  |  |  |  |  |  |  |
LIBOR exceeds ceiling rate |  |  | 2.25% |  |  |  |  |  |  |  |
Payments or receipts exchanged on interest rate cap |  |  | $ 0 |  |  |  |  |  |  |  |
Interest rate derivative assets, at fair value |  |  |  | $ 5,000,000 |  |  |  | $ 5,000,000 |  |  |
Gaming liabilities |  |  |  | $ 12,473,000 |  |  | $ 12,209,000 | 12,473,000 | 12,209,000 |  |
Amortized to interest expense |  |  |  |  |  |  |  | 5,100 | 1,600 | 700 |
Gaming Tax and Licenses Expense |  |  |  |  |  |  |  | $ 55,300,000 | $ 41,500,000 | $ 35,700,000 |
Anti-dilutive potential common share equivalents |  |  |  | 1,028,000 | 1,870,000 |  | 2,373,000 |  |  |  |
Shares repurchased |  |  |  |  |  |  |  | 1,200,000 | 0 | 0 |
Common stock, par value (in dollars per share) |  |  |  | $ 0.01 |  |  | $ 0.01 | $ 0.01 | $ 0.01 |  |
Shares repurchased, value |  |  |  |  |  |  |  | $ 19,598,000 |  |  |
Average price per share |  |  |  |  |  |  |  | $ 16.06 |  |  |
Common stock repurchase, remaining authorized |  |  |  | $ 5,400,000 |  |  |  | $ 5,400,000 |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock repurchase, authorized | $ 25,000,000 |  |  |  |  |  |  |  |  |  |
Accumulated Deficit [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares repurchased, value |  |  |  |  |  |  |  | 19,586,000 |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock repurchase, authorized |  |  |  |  |  |  |  |  |  |  | $ 25,000,000
Minimum [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares repurchased | 0 |  |  |  |  |  |  |  |  |  |
General and Administrative Expense [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Advertising Expense |  |  |  |  |  |  |  | $ 10,100,000 | $ 3,300,000 | $ 2,600,000 |
Anti-dilutive potential common share equivalents |  |  |  |  |  |  |  | 2,014,012 |  |  |
acePLAY Rewards Program [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Expiration period of participant points after no activity |  |  |  |  |  |  |  | 13 months |  |  |
Building and Site Improvements [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, useful lives |  | 19 years |  |  |  | 10 years |  |  |  |  |
Building and Site Improvements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, useful lives |  |  |  |  |  |  |  | 45 years |  |  |
Building and Site Improvements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, useful lives |  |  |  |  |  |  |  | 10 years |  |  |

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