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Merger and Acquisitions (Details Textual) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 10 Months Ended | 12 Months Ended
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Oct. 20, 2017 USD ($) Hotel Machine Game Room Agreement $ / shares shares | Jun. 17, 2016 USD ($) | Apr. 22, 2016 USD ($) Device | Jan. 29, 2016 USD ($) Device payment $ / shares shares | Dec. 09, 2015 USD ($) shares | Jul. 31, 2015 USD ($) $ / shares shares | Aug. 31, 2016 shares | Dec. 31, 2015 USD ($) shares | Jul. 31, 2016 USD ($) | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) $ / shares shares
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain on revaluation of contingent consideration |  |  |  |  |  |  |  |  |  |  | $ 1,719,000 |
Goodwill |  |  |  |  |  |  |  |  | $ 96,288,000 |  | 158,134,000 | $ 105,655,000
Business Acquisition, Goodwill Amount, Expected to be Deductible for Tax |  |  |  |  |  |  |  |  |  |  | $ 0 |
Increase (decrease) in goodwill |  |  |  |  |  |  |  |  |  |  |  | $ 1,174,000
Special dividend, per share | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 1.71
Common stock, shares outstanding (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 26,413,000 | 22,232,000
Special Dividend [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends payable, date declared |  |  |  |  |  |  |  |  |  |  | Jun. 17, 2016 |
Dividends payable, date of record |  |  |  |  |  |  |  |  |  |  | Jun. 30, 2016 |
Dividends declared |  |  | $ 23,500,000 |  |  |  |  |  |  |  |  |
Dividends payable, date paid |  |  |  |  |  |  |  |  |  |  | Jul. 14, 2016 |
Special dividend, per share | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 1.71 |
Common stock, shares outstanding (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 13,759,374 |
Penn National [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Financing receivable, gross |  |  |  |  |  | $ 60,000,000 |  |  |  |  |  |
Proceeds from sale of subordinated promissory note |  |  |  |  |  | $ 24,000,000 |  |  |  |  |  |
Senior Secured First Lien Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 900,000,000 |
Senior Secured First Lien Credit Facility [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | 800,000,000 |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  | 100,000,000 |
Senior Secured Second Lien Credit Facility [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 200,000,000 |
ACEP Holdings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, date of acquisition |  | Oct. 20, 2017 |  |  |  |  |  |  |  |  |  |
Consideration paid, cash |  | $ 781,000,000 |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  | 4,046,494 |  |  |  |  |  |  |  |  | 4,046,494 |
Closing price per share of common stock | $ / shares |  | $ 25.08 |  |  |  |  |  |  |  |  |  |
Number of credit agreements | Agreement |  | 2 |  |  |  |  |  |  |  |  |  |
Consideration paid, value of shares issued |  |  |  |  |  |  |  |  |  |  | $ 101,500,000 |
Total purchase price |  | $ 889,067,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property and Equipment |  | 754,581,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets |  | 66,140,000 |  |  |  |  |  |  |  |  |  |
Goodwill |  | 52,479,000 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | Senior Secured First Lien Credit Facility [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 900,000,000 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | Senior Secured First Lien Credit Facility [Member] | Term Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 800,000,000 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 100,000,000 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | Senior Secured Second Lien Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 200,000,000 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | ASC 805 [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, purchase price measurement period from acquisition date to record adjustments |  |  |  |  |  |  |  |  |  |  | 1 year |
ACEP Holdings [Member] | Nevada [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of casino hotel properties acquired | Hotel |  | 4 |  |  |  |  |  |  |  |  |  |
Number of slots | Machine |  | 3,865 |  |  |  |  |  |  |  |  |  |
Number of table games | Game |  | 89 |  |  |  |  |  |  |  |  |  |
Number of hotel rooms | Room |  | 4,896 |  |  |  |  |  |  |  |  |  |
ACEP Holdings [Member] | Post-Closing Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, cash |  | $ 787,581,000 |  |  |  |  |  |  |  |  |  |
Initial Montana Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  |  |  |  | 50,252 |  |  |  |  |  |  |
Consideration paid, value of shares issued |  |  |  |  | $ 500,000 |  |  |  |  |  |  |
Number of slots acquired | Device |  |  |  |  | 1,100 |  |  |  |  |  |  |
Total purchase price |  |  |  |  | $ 20,100,000 |  |  |  |  |  |  |
Shares Issued, price per share | $ / shares |  |  |  |  | $ 9.95 |  |  |  |  |  |  |
Business Combination, Contingent Consideration Maximum |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Number of Periodic Payment | payment |  |  |  |  | 4 |  |  |  |  |  |  |
Business Combination Contingent Consideration Arrangements Quarterly Payments, Start date |  |  |  |  |  |  |  |  |  |  | 2017-09 |
Gain on revaluation of contingent consideration |  |  |  |  | $ 1,700,000 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash |  |  |  |  | 1,700,000 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property and Equipment |  |  |  |  | 2,400,000 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets |  |  |  |  | 14,400,000 |  |  |  |  |  |  |
Goodwill |  |  |  |  | 1,600,000 |  |  |  |  |  |  |
Initial Montana Acquisition [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  |  | $ 9,800,000 |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  | 15 years |  |  |  |  |  |  |
Initial Montana Acquisition [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  |  | $ 3,900,000 |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  | 5 years |  |  |  |  |  |  |
Initial Montana Acquisition [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  |  | $ 500,000 |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  | 4 years |  |  |  |  |  |  |
Initial Montana Acquisition [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  |  | $ 200,000 |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  | 15 years |  |  |  |  |  |  |
Second Montana Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of slots acquired | Device |  |  |  | 1,800 |  |  |  |  |  |  |  |
Total purchase price |  |  |  | $ 25,700,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash |  |  |  | 300,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property and Equipment |  |  |  | 7,800,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets |  |  |  | 11,400,000 |  |  |  |  |  |  |  |
Goodwill |  |  |  | 6,000,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Prepaid Gaming License Fees |  |  |  | 100,000 |  |  |  |  |  |  |  |
Second Montana Acquisition [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  | $ 9,100,000 |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  | 15 years |  |  |  |  |  |  |  |
Second Montana Acquisition [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  | $ 1,800,000 |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  | 5 years |  |  |  |  |  |  |  |
Second Montana Acquisition [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  | $ 200,000 |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  | 4 years |  |  |  |  |  |  |  |
Second Montana Acquisition [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount Assigned to Intangible Assets |  |  |  | $ 300,000 |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  | 15 years |  |  |  |  |  |  |  |
Sartini Gaming [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares | [1] |  |  |  |  |  | 8,453,565 |  |  |  |  |
Total purchase price |  |  |  |  |  |  | $ 77,400,000 |  |  |  |  |
Shares Issued, price per share | $ / shares |  |  |  |  |  |  | $ 9.15 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash |  |  |  |  |  |  | $ 25,539,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property and Equipment |  |  |  |  |  |  | 83,173,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets |  |  |  |  |  |  | 80,460,000 |  |  |  |  |
Goodwill |  |  |  |  |  |  | 97,462,000 |  |  |  |  |
Number of Shares Released from Escrow | shares |  |  |  |  |  |  |  | 777,274 |  |  |  |
Effect of measurement period adjustment on purchase price consideration |  |  |  |  |  |  | 2,100,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liability |  |  |  |  |  |  | $ 14,576,000 |  |  | $ 14,700,000 |  |
Equipment Disposed Prior to Merger |  |  |  |  |  |  |  |  |  | 900,000 |  |
Shares restricted from distribution | shares |  |  |  |  |  | 7,996,393 |  |  |  |  |  |
Common stock, shares outstanding (in shares) | shares | [2] |  |  |  |  |  | 22,592,260 |  |  |  |  |
Sartini Gaming [Member] | Decrease to Acquired Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in goodwill |  |  |  |  |  |  |  |  |  | 1,600,000 |  |
Sartini Gaming [Member] | Increase In Accrued Taxes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in goodwill |  |  |  |  |  |  |  |  |  | 100,000 |  |
Sartini Gaming [Member] | Decrease In Player Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in goodwill |  |  |  |  |  |  |  |  |  | 300,000 |  |
Sartini Gaming [Member] | Release of Deferred Tax Liability [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in goodwill |  |  |  |  |  |  |  |  |  | $ (100,000) |  |
Sartini Gaming [Member] | Holders of Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  |  |  |  |  |  | 457,172 |  |  |  |  |
Sartini Gaming [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets |  |  |  |  |  |  | $ 59,200,000 |  |  |  |  |
Sartini Gaming [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  |  |  |  |  |  |  | 10 years |
Sartini Gaming [Member] | Maximum [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  |  |  | 16 years |  |  |  |  |
Sartini Gaming [Member] | Minimum [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Economic Life of Intangible Assets |  |  |  |  |  |  | 13 years |  |  |  |  |
Sartini Gaming [Member] | Post-Closing Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  |  |  |  |  |  | 223,657 |  | 223,657 |  |  |
Business Acquisition, Equity Interest, Number of Shares Released from Escrow | shares |  |  |  |  |  |  |  |  | 388,637 |  |  |
Sartini Gaming [Member] | At Closing of Merger [Member] | Sartini Trust [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  |  |  |  |  |  | 7,772,736 |  |  |  |  |
Sartini Gaming [Member] | At Closing of Merger [Member] | Holders of Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid, shares issued | shares |  |  |  |  |  |  | 457,172 |  |  |  |  |
Sartini Gaming [Member] | Restatement Adjustment [Member] | Third Quarter, 2015 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Purchase Accounting Adjustments, Reversal of Amortization Expense |  |  |  |  |  |  |  |  | $ 200,000 |  |  |
Holders of Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares restricted from distribution | shares |  |  |  |  |  | 457,172 |  |  |  |  |  |
[1] | Includes 457,172 shares of the Company’s common stock that were issued to certain former holders of warrants issued by a subsidiary of Sartini Gaming upon the closing of the Merger.
[2] | Calculated as the sum of the number of shares of the Company’s common stock outstanding immediately after the Merger (on a fully diluted basis, including shares issuable upon the exercise of outstanding in-the-money stock options) and the number of shares of the Company’s common stock issued pursuant to the post-closing adjustment provisions of the Merger Agreement.

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