Acquisitions And New Ventures (Details) - Equity Method Investment, by Funding [Domain] - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 16, 2014	Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Oct. 28, 2014
Schedule of Equity Method Investments [Line Items]
Revenues			$ 0	$ 0	$ 0	$ 0
Tax refund due to Big Fish Games former equity holders		$ 18,087	6,313		6,313
Goodwill, Purchase Accounting Adjustments			1,400
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Income Taxes			800
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Expenses			2,200
Deferred payments to Big Fish Games former equity holders					12,700
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest			101,718	$ 92,100	98,901	$ 90,962
Big Fish Games [Member]
Schedule of Equity Method Investments [Line Items]
Revenues			104,500		196,400
Payments to Acquire Businesses, Gross	$ 838,300
Future Business Acquisition, Cost Of Acquired Entity, Cash paid	401,700
Deferred Payment-Founder	85,300
Deferred Founders Payment,Time Payable		3 years
Deferred Payment-Founder, Fair Value	78,000
Tax refund due to Big Fish Games former equity holders	18,100
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	15,800
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		157,115
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	350,000
Business Combination, Contingent Consideration, Liability	324,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 34,700
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest			$ 6,800		$ 1,000
Saratoga Casino Holdings, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage							25.00%
Secured Debt [Member]
Schedule of Equity Method Investments [Line Items]
Other Loans Payable, Long-term, Noncurrent		$ 200,000
Gideon Putnam Hotel and Resort [Member] | Saratoga Casino Holdings, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage							50.00%