Reclassifications Schedule of Marketing and General and Administrative Expenses Reclassified (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012 Marketing Reclassified to General and Administrative [Member]	Sep. 30, 2012 Marketing Reclassified to General and Administrative [Member]	Sep. 30, 2012 Net Cash Used in Investing Activities Reclassified to Net Cash Provided By Operating Activities [Member]	Sep. 30, 2013 Net Cash Used in Investing Activities Reclassified to Net Cash Provided By Operating Activities [Member]	Sep. 30, 2013 Domestic Streaming [Member]	Sep. 30, 2013 Domestic Streaming [Member]	Sep. 30, 2013 International Streaming [Member]	Sep. 30, 2013 International Streaming [Member]
Prior period reclassification adjustment			$ 4.8	$ 15.0	$ 3.1	$ 3.4
Content library useful life		4 years
Decrease in contribution profit/increase in contribution loss from change in estimate							20.2	20.2	6.5	6.5
Decrease in operating income from change in estimate	26.7	26.7
Decrease in net income from change in estimate	$ 16.7	$ 16.7
Decrease in basic earnings per share from change in estimate	$ 0.28	$ 0.29
Decrease in diluted earnings per share from change in estimate	$ 0.27	$ 0.27