Acquisitions - Narrative (Details) - USD ($)						3 Months Ended	12 Months Ended
	Jul. 15, 2015	Jun. 15, 2015	May. 29, 2015	May. 06, 2014	Dec. 20, 2013	Sep. 30, 2015	Dec. 31, 2014	May. 31, 2015	May. 06, 2015	Sep. 16, 2013
Business Acquisition [Line Items]
Goodwill						$ 261,406,000	$ 77,617,000
C2 Gaming contingent consideration (see Note 2)						$ 1,126,000	$ 2,500,000
Business Acquisition, Share Price						$ 0.01	$ 0.01
Gamingo [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of equity interests acquired		100.00%
Aggregate purchase price		$ 8,800,000
Business Combination, Contingent Consideration, Liability, Noncurrent		5,000,000
Goodwill		4,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 4,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		3 years
Intellectual Property Acquisitions [Member]
Business Acquisition [Line Items]
Aggregate purchase price						$ 10,000,000
Business Combination, Contingent Consideration, Liability, Noncurrent						1,500,000
Goodwill						2,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill						$ 6,500,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						8 years 6 months
Cadillac Jack [Member]
Business Acquisition [Line Items]
Business Combination, Working Capital Increase (Decrease)						$ 1,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			$ 4,233,000
Business acquisition, percentage of equity interests acquired			100.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets			$ 8,300,000
Aggregate purchase price			380,460,000
Research and Development in Process			30,000,000
Liability for Uncertain Tax Positions, Noncurrent			53,600,000
Business Combination, Indemnification Assets, Amount as of Acquisition Date			37,900,000
Goodwill			178,419,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			199,752,000
Business Combination, Deferred Tax Liabilities Noncurrent			41,001,000
Contingent consideration			(1,300,000)
Cadillac Jack [Member] | Notes Payable [Member] | Promissory Note 12.0 Million Amaya [Member]
Business Acquisition [Line Items]
Seller note			12,000,000
C2 Gaming, LLC [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of equity interests acquired				100.00%
Aggregate purchase price				$ 23,300,000
One-year payment				9,000,000
Contingent consideration				$ 3,000,000
Payments for Previous Acquisition	$ 1,000,000						$ 500,000
Business Combination, Contingent Consideration, Liability								$ 2,100,000	$ 2,500,000
Business Combination, Contingent Consideration, Liability, Value After Reduction	$ 1,100,000
AGS Capital, LLC [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of equity interests acquired										100.00%
Aggregate purchase price					$ 220,500,000
Maximum [Member] | Cadillac Jack [Member]
Business Acquisition [Line Items]
Contingent consideration			$ 25,000,000
Common Class A [Member] | AGS Capital, LLC [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares					10,000,000
Business Acquisition, Share Price					$ 0.01
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable					$ 100,000,000