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Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investment Securities - Narrative (Details)
3 Months Ended
Mar. 31, 2022
Feb. 28, 2017
NagraStar    
Other investment securities:    
Ownership interest (as a percent)   50.00%
DISH DBS Corporation ("DDBS") | 5 1/4% Senior Secured Notes due 2026    
Other investment securities:    
Interest rate (as a percent) 5.25%  
DISH DBS Corporation ("DDBS") | 5 3/4% Senior Secured Notes due 2028    
Other investment securities:    
Interest rate (as a percent) 5.75%  
Commercial paper | Maximum    
Other investment securities:    
Debt term of Maturity 365 days  
Corporate securities | Maximum    
Other investment securities:    
Debt term of Maturity 18 months