Acquisitions And New Ventures - Additional Information (Details)		1 Months Ended					12 Months Ended
	Dec. 16, 2014 USD ($) shares	Dec. 31, 2016 USD ($) game	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	May 31, 2015	Dec. 31, 2014 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) game	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Feb. 17, 2016 USD ($)	Dec. 01, 2014 USD ($)
Business Acquisition [Line Items]
Tax refund due to Big Fish Games former equity holders		$ 0		$ 400,000				$ 0	$ 400,000
Acquisition of businesses, net of cash acquired								0	900,000	$ 366,000,000
Earnout liability for acquisition of Big Fish Games								0	0	324,700,000
Deferred payment for acquisition of Big Fish Games								0	0	97,100,000
Acquisition expenses, net								3,400,000	34,700,000	7,100,000
Increase in deferred tax assets for business combination										800,000
Purchase accounting adjustments for goodwill										1,400,000
Increase in accrued expense for business combination										2,200,000
Big Fish Games deferred payment								$ 26,400,000	28,500,000	0
Royalty rate, fair value input								2.30%
Loss from continuing operations before provision for income taxes								$ (168,100,000)	(112,100,000)	(76,500,000)
Trademarks
Business Acquisition [Line Items]
Royalty rate, fair value input	5.00%
Customer Relationships
Business Acquisition [Line Items]
Royalty rate, fair value input	10.00%
Developed Technology Rights
Business Acquisition [Line Items]
Royalty rate, fair value input	25.00%
In-Process Research and Development
Business Acquisition [Line Items]
Royalty rate, fair value input	10.00%
Selling, General and Administrative Expense
Business Acquisition [Line Items]
Acquisition expenses, net										6,400,000
Minimum | Equipment
Business Acquisition [Line Items]
Property, plant, and equipment, useful life								2 years
Minimum | Furniture and fixtures
Business Acquisition [Line Items]
Property, plant, and equipment, useful life								2 years
Maximum | Equipment
Business Acquisition [Line Items]
Property, plant, and equipment, useful life								10 years
Maximum | Furniture and fixtures
Business Acquisition [Line Items]
Property, plant, and equipment, useful life								10 years
Issuance Of Common Stock For Extinguishment Of Convertible Note Payable
Business Acquisition [Line Items]
Issuance of common stock for acquisition of Big Fish Games	$ 15,800,000									$ 15,800,000
Secured Debt
Business Acquisition [Line Items]
Term loan facility											$ 188,700,000	$ 200,000,000
Big Fish Games
Business Acquisition [Line Items]
Purchase price consideration	838,400,000
Purchase price consideration, cash paid	401,700,000
Deferred payment to founder	85,300,000
Length of deferred founder payment payable (in years)						3 years
Big Fish Games deferred payments fair value	78,000,000
Tax refund due to Big Fish Games former equity holders	$ 18,100,000
Business acquisition, equity interest issued or issuable, number of shares | shares	157,115
Maximum additional variable cash consideration for achievement of certain performance milestones	$ 350,000,000
Big Fish Games earnout liability, change in fair value			$ 281,600,000
Big Fish Games earnout liability	324,700,000
Goodwill from acquisition	540,300,000
Acquisition of businesses, net of cash acquired	366,000,000
Cash acquired in business combination	34,700,000
Payments to Big Fish Games former equity holders									18,700,000
Big Fish Games deferred payment		$ 28,400,000		$ 28,400,000					$ 28,400,000
Number of games expected to launch in next fiscal year | game		1						1
Expected revenue recognition period of games launched in 2015								5 years
Expected revenue recognition period of games launched in 2016								6 years
Deferred revenue	$ 37,300,000
Net revenue						$ 13,900,000
Loss from continuing operations before provision for income taxes						$ 2,900,000
Big Fish Games | Minimum | Computer Equipment and Software
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	1 year
Big Fish Games | Minimum | Equipment
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	2 years
Big Fish Games | Minimum | Furniture and fixtures
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	2 years
Big Fish Games | Minimum | Leasehold Improvements
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	3 years
Big Fish Games | Maximum | Computer Equipment and Software
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	5 years
Big Fish Games | Maximum | Equipment
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	10 years
Big Fish Games | Maximum | Furniture and fixtures
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	10 years
Big Fish Games | Maximum | Leasehold Improvements
Business Acquisition [Line Items]
Property, plant, and equipment, useful life	10 years
I-Gaming
Business Acquisition [Line Items]
Term of agreement for internet-based interactive gaming services within California (in years)					10 years
Scenario, Forecast | Big Fish Games
Business Acquisition [Line Items]
Big Fish Games earnout liability, change in fair value							$ 68,400,000