Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Schedule of Related Party Revenue and Other Income, Additional Information (Details)

v3.8.0.1
Related Party Transactions - Schedule of Related Party Revenue and Other Income, Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 5 Months Ended
Mar. 31, 2018
Mar. 31, 2017
May 24, 2017
Related Party Transaction [Line Items]      
Amortization of intangible assets $ 5,862 $ 11,528  
Sirius XM Canada | Equity Method Investee      
Related Party Transaction [Line Items]      
Earning recognition lag period     1 month
Amortization of intangible assets $ 623    
Sirius XM Canada | Equity Method Investee | Sirius Platform      
Related Party Transaction [Line Items]      
Percentage-based fee     10.00%
Sirius XM Canada | Equity Method Investee | X M Platform      
Related Party Transaction [Line Items]      
Percentage-based fee     15.00%