v2.4.0.8

Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue Recognition
Period of service contract under consumer rental program	24 months
Advertising Costs
Advertising Expenses	$ 47.4	$ 47.0	$ 27.8
Capitalized Software Costs
Net carrying amount of externally marketed software	31.4	15.9
Amortization expense relating to externally marketed software	1.7	0.3
Amount of transfers between levels within the fair value hierarchy	0	0
Level 2
Fair value measurements
Orbital incentive obligations	$ 48.4	$ 30.0
Minimum
Other Investments Securities - Cost and Equity Method
Ownership percentage of voting securities in investments that are accounted for under the equity method of accounting	20.00%
Property and equipment
Useful life	1 year
Finite-Lived Intangible Assets
Useful life	1 year
Maximum
Property and equipment
Useful life	40 years
Finite-Lived Intangible Assets
Useful life	30 years
Capitalized Software Costs
Software useful life	5 years

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Consumer rental program period of service contract.

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Useful life of software that is either acquired, internally developed, or modified to meet the entity's needs.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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-Publisher FASB

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Fair value of obligations measured on a recurring basis.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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