Related Party Transactions (Details) $ in Millions		1 Months Ended																3 Months Ended	12 Months Ended
	Mar. 02, 2014 USD ($) satellite	Feb. 28, 2022	Apr. 30, 2018	Mar. 31, 2018	Mar. 31, 2017	Feb. 28, 2017	Dec. 31, 2016	Nov. 30, 2016	Jul. 31, 2016	Mar. 31, 2014 satellite	Dec. 31, 2012	Oct. 31, 2012	May 31, 2012	May 31, 2010	Jan. 31, 2010	Sep. 30, 2009 transponder	Nov. 30, 2008 transponder	Mar. 31, 2017 term	Dec. 31, 2009	Jan. 31, 2017	Aug. 31, 2014	Feb. 28, 2013 transponder	Jul. 31, 2012	Mar. 31, 2012	Sep. 30, 2010 USD ($)
Sling TV Holding
Related party transactions
Equity interest in joint venture																							33.00%
Non-voting interest in joint venture																					10.00%
Hughes Broadband Distribution Agreement
Related party transactions
Agreement term												5 years
Required minimum notice for termination of agreement																		180 days
Automatic renewal period																		1 year
Hughes Broadband Master Services Agreement [Member]
Related party transactions
Agreement term					5 years
Automatic renewal period																		1 year
Subsequent Event | Hughes Broadband Master Services Agreement [Member]
Related party transactions
Required minimum notice for termination of agreement				90 days
DISH Network | Sling TV Holding
Related party transactions
Ownership interest acquired by related party																					90.00%		67.00%
Voting interests acquired by related party																					100.00%
DISH Network | 2012 Receiver Agreement
Related party transactions
Agreement term								1 year
DISH Network | Broadcast Agreement
Related party transactions
Agreement term								1 year
DISH Network | Broadcast Agreement for Certain Sports Related Programming
Related party transactions
Agreement term														10 years
DISH Network | RUS Implementation Agreement
Related party transactions
Grants receivable | $																									$ 14.1
DISH Network | Echo Star V I I
Related party transactions
Agreement term							1 year
DISH Network | EchoStar XVI
Related party transactions
Agreement term									1 year										10 years
Agreement term from commencement of service date											4 years
Reduction in term of first renewal option									1 year
Term of renewal option																		5 years
Additional term of renewal option																		5 years
DISH Network | DISH Nimiq 5 Agreement
Related party transactions
Number of DBS transponders available to receive services																32
DISH Network | QuetzSat-1 Transponder
Related party transactions
Number of DBS transponders currently receiving services																	24
Number of DBS transponders currently receiving services subleased back from related party																						5
DISH Network | Service agreement to lease certain satellite capacity | Ciel
Related party transactions
Agreement term													10 years
DISH Network | Satellite and Tracking Stock Transaction
Related party transactions
Proceeds from issuance of Tracking Stock | $	$ 11.4
DISH Network | Satellite and Tracking Stock Transaction | EchoStar and HSSC
Related party transactions
Number of owned satellites transferred | satellite	5									5
DISH Network | TT&C Agreement
Related party transactions
Minimum required notice period for termination of agreement by related party																		60 days
Agreement term								1 year
DISH Network | 100 Inverness Lease Agreement
Related party transactions
Required minimum notice for termination of agreement																		180 days
Required minimum notice for termination or agreement if month-to-month																		30 days
DISH Network | Meridian Lease Agreement
Related party transactions
Agreement term							1 year
Required minimum notice for termination or agreement if month-to-month																		30 days
DISH Network | Santa Fe Lease Agreement
Related party transactions
Agreement term							1 year
Required minimum notice for termination or agreement if month-to-month																		30 days
DISH Network | El Paso Lease Agreement
Related party transactions
Term of renewal option																		3 years
Number of successive three year renewal options | term																		4
DISH Network | 90 Inverness Lease Agreement
Related party transactions
Term of renewal option																		3 years
Number of successive three year renewal options | term																		4
DISH Network | Cheyenne Lease Agreement
Related party transactions
Term of renewal option																		1 year
Required minimum notice for termination or agreement if month-to-month																		30 days
Number of successive one year renewal options | term																		13
DISH Network | Gilbert Lease Agreement
Related party transactions
Agreement term								1 year
Term of renewal option																		1 year
Number of successive one year renewal options | term																		13
DISH Network | DISHOnline.com Services Agreement
Related party transactions
Agreement term								1 year							2 years
DISH Network | DISH Remote Access Services Agreement
Related party transactions
Agreement term						1 year
DISH Network | SlingService Services Agreement
Related party transactions
Agreement term						1 year
DISH Network | Set-Top Box Application Development Agreement
Related party transactions
Agreement term						1 year
DISH Network | DBSD North America Agreement
Related party transactions
Ownership interest acquired by related party																								100.00%
DISH Network | Remanufactured Receiver Agreement
Related party transactions
Agreement term								1 year
DISH Network | Amended and Restated Professional Services Agreement
Related party transactions
Required minimum notice for termination of agreement																		60 days
Automatic renewal period																		1 year
Required minimum notice for termination of individual service																		30 days
DISH Network | Collocation and Antenna Space Agreements [Member]
Related party transactions
Related Party Transactions Agreement, Termination Notice Required by Reporting Entity																		180 days
DISH Network | Subsequent Event | TerreStar Agreement
Related party transactions
Minimum required notice period for termination of agreement by related party				60 days
Agreement term			1 year	1 year
Required minimum notice for termination of agreement			90 days
DISH Network | Subsequent Event | DBSD North America Agreement
Related party transactions
Minimum required notice period for termination of agreement by related party		180 days	120 days
Agreement term		5 years	1 year
Telesat Canada | TeleSat Transponder Agreement
Related party transactions
Agreement term																15 years
Number of DBS transponders available to receive services																32
SES Latin America | QuetzSat-1 Lease Agreement
Related party transactions
Agreement term																	10 years
Number of DBS transponders expected to receive services																	32
Hughes Retail Group | Hughes Retail Preferred Tracking Stock | DISH Network | Satellite and Tracking Stock Transaction
Related party transactions
Percentage of economic interest held	80.00%
EchoStar Technologies Business | DISH Network | Share Exchange Agreement
Related party transactions
Ownership interest acquired by related party																				100.00%