Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.10.0.1
Fair Value Measurements (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 22, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
May 25, 2017
Liabilities:          
Debt   $ 6,632,505 $ 6,987,473    
Investment   16,833 612,465 $ 0  
Equity Method Investee          
Liabilities:          
Notes receivable, related parties         $ 130,794
Pandora          
Assets:          
Pandora investment   523,089 480,472    
Pandora | Investee          
Liabilities:          
Investment $ 480,000        
Sirius XM Canada | Equity Method Investee          
Liabilities:          
Equity method investments   311,213 341,214    
Notes receivable, related parties   126,013 140,073    
Level 1          
Liabilities:          
Debt   0 0    
Level 1 | Pandora          
Assets:          
Pandora investment   0 0    
Level 2          
Liabilities:          
Debt   6,632,505 6,987,473    
Level 2 | Pandora          
Assets:          
Pandora investment   523,089 480,472    
Level 3          
Liabilities:          
Debt   0 0    
Level 3 | Pandora          
Assets:          
Pandora investment   $ 0 $ 0