v3.8.0.1
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2017
Feb. 12, 2018
Jun. 30, 2017
Entity Registrant Name EchoStar CORP    
Entity Central Index Key 0001415404    
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 2,860,000,000
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Class A common stock      
Entity Common Stock, Shares Outstanding   48,146,076  
Class B common stock      
Entity Common Stock, Shares Outstanding   47,687,039