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Summary of Significant Accounting Policies (Details Textual) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Advertising expense | $ 222,962us-gaap_AdvertisingExpense | $ 178,364us-gaap_AdvertisingExpense | $ 139,830us-gaap_AdvertisingExpense | |
| Research and development expense | 54,109us-gaap_ResearchAndDevelopmentExpense | 50,564us-gaap_ResearchAndDevelopmentExpense | 42,605us-gaap_ResearchAndDevelopmentExpense | |
| Accumulated other comprehensive loss, net of tax | 1,309,837us-gaap_StockholdersEquity | 2,745,742us-gaap_StockholdersEquity | 4,039,565us-gaap_StockholdersEquity | 704,145us-gaap_StockholdersEquity |
| Foreign currency translation adjustment (loss), net of tax | (94)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | (428)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | 49us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | |
| Sirius XM Canada [Member] | 8% Convertible Unsecured Subordinated Debentures [Member] | ||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Interest rate on instrument |
8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = siri_SiriusXmCanadaMember |
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| Accumulated Other Comprehensive Income (Loss) [Member] | ||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Accumulated other comprehensive loss, net of tax |
(402)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
(308)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
120us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
71us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
| Accumulated Translation Adjustment [Member] | ||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Reclassification adjustment for foreign currency translation out of accumulated other comprehensive income(loss) |
$ 223us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax of reclassification adjustments of other comprehensive income (loss). No definition available.
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- Definition
The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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