Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.8.0.1
Fair Value Measurements (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 22, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
May 25, 2017
Liabilities:          
Debt   $ 6,987,473 $ 6,008,205    
Investment in convertible preferred stock   612,465 0 $ 0  
Equity Method Investee          
Liabilities:          
Notes receivable, related parties         $ 130,794
Level 1          
Liabilities:          
Debt   0 0    
Level 2          
Liabilities:          
Debt   6,987,473 6,008,205    
Level 3          
Liabilities:          
Debt   0 0    
Pandora          
Assets:          
Investments   480,472 0    
Pandora | Investee          
Liabilities:          
Investment in convertible preferred stock $ 480,000 480,000      
Pandora | Level 1          
Assets:          
Investments   0 0    
Pandora | Level 2          
Assets:          
Investments   480,472 0    
Pandora | Level 3          
Assets:          
Investments   0 0    
Sirius XM Canada          
Assets:          
Investments     178,696    
Sirius XM Canada | Equity Method Investee          
Liabilities:          
Long-term investment   341,214 8,615    
Notes receivable, related parties   $ 140,073      
Sirius XM Canada | Level 1          
Assets:          
Investments     178,696    
Sirius XM Canada | Level 2          
Assets:          
Investments     0    
Sirius XM Canada | Level 3          
Assets:          
Investments     $ 0