Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 22, 2017
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
May 25, 2017
Dec. 31, 2016
Liabilities:              
Debt   $ 7,081,843   $ 7,081,843     $ 6,008,205
Investment in convertible preferred stock       480,000 $ 0    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]              
Accumulated other comprehensive income   (1,050,101)   (1,050,101)     (792,015)
Foreign currency translation adjustment, net of tax   3,680 $ (14) 6,426 $ 420    
Foreign currency translation adjustment, tax   2,176   3,921      
Accumulated Other Comprehensive (Loss) Income              
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]              
Accumulated other comprehensive income   6,287   6,287     (139)
Equity Method Investee              
Liabilities:              
Notes receivable, related parties           $ 130,794  
Level 1              
Liabilities:              
Debt   0   0     0
Level 2              
Liabilities:              
Debt   7,081,843   7,081,843     6,008,205
Level 3              
Liabilities:              
Debt   0   0     0
Pandora              
Assets:              
Pandora - investment   552,245   552,245     0
Pandora | Investee              
Liabilities:              
Investment in convertible preferred stock $ 480,000     480,000      
Pandora | Level 1              
Assets:              
Pandora - investment   0   0     0
Pandora | Level 2              
Assets:              
Pandora - investment   552,245   552,245     0
Pandora | Level 3              
Assets:              
Pandora - investment   0   0     0
Sirius XM Canada              
Assets:              
Sirius XM Canada - investment             178,696
Sirius XM Canada | Equity Method Investee              
Assets:              
Long-term investment   323,593   323,593     8,615
Liabilities:              
Notes receivable, related parties   $ 141,189   $ 141,189      
Sirius XM Canada | Level 1              
Assets:              
Sirius XM Canada - investment             178,696
Sirius XM Canada | Level 2              
Assets:              
Sirius XM Canada - investment             0
Sirius XM Canada | Level 3              
Assets:              
Sirius XM Canada - investment             $ 0