Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.10.0.1
Commitments and Contingencies - Additional Information (Details)
9 Months Ended
Jul. 06, 2018
USD ($)
Mar. 13, 2017
USD ($)
Sep. 30, 2018
USD ($)
satellite
Loss Contingencies [Line Items]      
Number of replacement satellites | satellite     2
Sound Exchange, Inc | Settled Litigation      
Loss Contingencies [Line Items]      
Payments for legal settlements $ 150,000,000    
Telephone Consumer Protection Act Suits | Pending Litigation      
Loss Contingencies [Line Items]      
Damages sought per violation   $ 500  
Surety Bond      
Loss Contingencies [Line Items]      
Estimate of possible loss     $ 45,000,000
Maximum      
Loss Contingencies [Line Items]      
Operating lease obligations, term     15 years
Maximum | Telephone Consumer Protection Act Suits | Pending Litigation      
Loss Contingencies [Line Items]      
Damages sought per willful violation   $ 1,500  
Minimum      
Loss Contingencies [Line Items]      
Operating lease obligations, term     1 year
XM-5, FM-5, FM-6, XM-3, and XM-4      
Loss Contingencies [Line Items]      
Operating performance over design life     15 years
XM-4      
Loss Contingencies [Line Items]      
Period beyond expected operating performance of design life for XM-4     5 years
XM-4 | Maximum      
Loss Contingencies [Line Items]      
Additional payments required if XM-4 continues to operate above baseline specifications     $ 10,000,000