Acquisitions And New Ventures Identifiable Assets Acquired and Liabilities Assumed (Details) - Big Fish Games [Member] $ in Thousands	Dec. 16, 2014 USD ($)
Business Acquisition [Line Items]
Accounts receivable	$ 19,274
Income taxes receivable	18,087
Prepaid expenses	9,727
Deferred income taxes	1,708
Other assets	1,780
Property and equipment	14,632
Goodwill	540,331
Other intangible assets	362,863
Total assets acquired	968,402
Accounts payable	9,064
Accrued expenses	19,217
Income taxes payable	210
Deferred revenue	37,250
Deferred income taxes	96,182
Other liabilities	2,821
Total liabilities acquired	164,744
Purchase price, net of cash acquired	$ 803,658