Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.10.0.1
Commitments and Contingencies - Additional Information (Details)
 12 Months Ended
Mar. 13, 2017
USD ($)
Dec. 31, 2018
USD ($)
satellite
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Loss Contingencies [Line Items]        
Number of replacement satellites | satellite   2    
Rent expense   $ 43,494,000 $ 43,375,000 $ 46,968,000
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