Balance Sheet Components - Property And Equipment And Accumulated Depreciation (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 472,305	$ 414,691
Less: Accumulated depreciation	(291,037)	(264,816)
Property and equipment, net	181,268	149,875
Information technology assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 190,929	$ 189,274
Estimated Useful Lives	3 years	3 years
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 35,967	$ 25,758
Estimated Useful Lives	3 years	3 years
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 40,681	$ 40,681
Estimated Useful Lives	30 years	30 years
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 103,113	$ 57,339
Leasehold improvements [Member] | Company's headquarters [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	44,300
DVD operations equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 89,132	$ 89,144
Estimated Useful Lives	5 years	5 years
Capital work-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 12,483	$ 12,495