v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Oct. 31, 2018
Entity Registrant Name EchoStar CORP  
Entity Central Index Key 0001415404  
Document Type 10-Q  
Document Period End Date Sep. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Entity Emerging Growth Company false  
Entity Small Business false  
Class A common stock    
Entity Common Stock, Shares Outstanding   48,548,092
Class B common stock    
Entity Common Stock, Shares Outstanding   47,687,039