Commitments and Contingencies - Streaming Content - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Contractual Obligation [Line Items]
Streaming obligations included in current content liabilities	$ 10,378,218	$ 9,451,112
Streaming obligations not reflected on Consolidated Balance Sheets	5,800,000	5,800,000
Current Content Liabilities [Member]
Contractual Obligation [Line Items]
Streaming obligations included in non-current content liabilities	2,600,000	2,100,000
Non-current Content Liabilities [Member]
Contractual Obligation [Line Items]
Streaming obligations included in non-current content liabilities	$ 2,000,000	$ 1,600,000