Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Summary of Related Party Balances (Details)

v2.4.1.9
Related Party Transactions - Summary of Related Party Balances (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]    
Related party current assets $ 3,374us-gaap_DueFromRelatedPartiesCurrent $ 4,344us-gaap_DueFromRelatedPartiesCurrent
Related party long-term assets 0us-gaap_DueFromRelatedPartiesNoncurrent 3,000us-gaap_DueFromRelatedPartiesNoncurrent
Related party current liabilities 4,860us-gaap_DueToRelatedPartiesCurrent 4,340us-gaap_DueToRelatedPartiesCurrent
Related party long-term liabilities 12,925us-gaap_DueToRelatedPartiesNoncurrent 13,635us-gaap_DueToRelatedPartiesNoncurrent
Sirius XM Canada [Member]    
Related Party Transaction [Line Items]    
Related party current assets 3,374us-gaap_DueFromRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
4,344us-gaap_DueFromRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
Related party long-term assets 0us-gaap_DueFromRelatedPartiesNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
3,000us-gaap_DueFromRelatedPartiesNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
Related party current liabilities 4,860us-gaap_DueToRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
4,340us-gaap_DueToRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
Related party long-term liabilities $ 12,925us-gaap_DueToRelatedPartiesNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember
$ 13,635us-gaap_DueToRelatedPartiesNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= siri_SiriusXmCanadaMember