Related Party Transactions (Details 2) - DISH Network $ in Millions		1 Months Ended				3 Months Ended		6 Months Ended
	Mar. 02, 2014 USD ($) satellite	Mar. 31, 2017	Dec. 31, 2016 USD ($)	Oct. 31, 2016 parcel	Dec. 31, 2011 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Feb. 28, 2017	Oct. 01, 2013 subsidiary
Caltech
Related party transactions
Number of subsidiaries against which lawsuit was filed | subsidiary											2
Satellite and Tracking Stock Transaction
Related party transactions
Proceeds from issuance of Tracking Stock	$ 11.4
Satellite and Tracking Stock Transaction | EchoStar and HSSC
Related party transactions
Related Party Transactions Number of Owned Satellites Transferred | satellite	5
Hughes Broadband Master Services Agreement
Related party transactions
Agreement term		5 years
Automatic renewal period								1 year
Required minimum notice for termination of agreement								90 days
Contract Revenue Cost						$ 6.2	$ 4.8	$ 19.9	$ 4.8
Share Exchange Agreement | EchoStar Technologies Business
Related party transactions
Ownership interest acquired by related party										100.00%
Patent Cross-License Agreements
Related party transactions
Maximum aggregate payments required under cross license agreements					$ 10.0
Maximum additional aggregate payments required under cross license agreements if options are exercised			$ 3.0
Orange New Jersey
Related party transactions
Number of Real Estate Properties | parcel				2