CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Adoption of ASC 326 Increase (Decrease)	Balance at January 1, 2020	Common Stock	Common Stock Balance at January 1, 2020	Additional Paid-In Capital	Additional Paid-In Capital Balance at January 1, 2020	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Balance at January 1, 2020	Accumulated Earnings (Losses)	Accumulated Earnings (Losses) Adoption of ASC 326 Increase (Decrease)	Accumulated Earnings (Losses) Balance at January 1, 2020	Treasury Stock, at cost	Treasury Stock, at cost Balance at January 1, 2020	Non-controlling Interests	Non-controlling Interests Adoption of ASC 326 Increase (Decrease)	Non-controlling Interests Balance at January 1, 2020
Beginning balance at Dec. 31, 2018	$ 4,155,474			$ 102		$ 3,702,522		$ (125,100)		$ 694,129			$ (131,454)		$ 15,275
Issuances of Class A common stock:
Exercise of stock options	64,143			2		64,141
Employee benefits	6,654					6,654
Employee Stock Purchase Plan	7,724					7,724
Stock-based compensation	7,120					7,120
R&D tax credits utilized by DISH Network	(432)					(432)
Purchase of non-controlling interest	(7,313)					(833)									(6,480)
BSS Transaction	(535,103)					(535,103)
Other comprehensive income (loss)	(6,564)							(6,564)
Net income (loss)	(11,158)									(9,799)					(1,359)
Other, net	3,370					15				1,597					1,758
Ending balance at Sep. 30, 2019	3,683,915			104		3,251,808		(131,664)		685,927			(131,454)		9,194
Beginning balance at Jun. 30, 2019	4,242,951			104		3,777,499		(119,500)		704,236			(131,454)		12,066
Issuances of Class A common stock:
Exercise of stock options	2,640					2,640
Employee Stock Purchase Plan	2,650					2,650
Stock-based compensation	2,287					2,287
R&D tax credits utilized by DISH Network	(13)					(13)
Purchase of non-controlling interest	0					1,833									(1,833)
BSS Transaction	(535,103)					(535,103)
Other comprehensive income (loss)	(12,164)							(12,164)
Net income (loss)	(21,106)									(18,309)					(2,797)
Other, net	1,773					15									1,758
Ending balance at Sep. 30, 2019	3,683,915			104		3,251,808		(131,664)		685,927			(131,454)		9,194
Beginning balance at Dec. 31, 2019	3,745,553	$ (9,308)	$ 3,736,245	105	$ 105	3,290,483	$ 3,290,483	(122,138)	$ (122,138)	632,809	$ (9,068)	$ 623,741	(131,454)	$ (131,454)	75,748	$ (240)	$ 75,508
Issuances of Class A common stock:
Exercise of stock options	983					983
Employee benefits	6,920					6,920
Employee Stock Purchase Plan	8,066					8,066
Stock-based compensation	6,887					6,887
Issuance of equity and contribution of assets pursuant to the Yahsat JV formation	2,824					4,338									(1,514)
Contribution by non-controlling interest holder	14,268
Other comprehensive income (loss)	(111,969)							(91,342)							(20,627)
Net income (loss)	(49,307)									(40,267)					(9,040)
Treasury share repurchase	(5,893)												(5,893)
Other, net	4,112					191									(21)
Ending balance at Sep. 30, 2020	3,613,136			105		3,317,868		(209,538)		583,474			(137,347)		58,574
Beginning balance at Jun. 30, 2020	3,584,268			105		3,311,861		(206,810)		558,034			(137,347)		58,425
Issuances of Class A common stock:
Exercise of stock options	477					477
Employee Stock Purchase Plan	2,766					2,766
Stock-based compensation	2,378					2,378
Contribution by non-controlling interest holder	4,268														4,268
Other comprehensive income (loss)	(8,601)							(6,670)							(1,931)
Net income (loss)	23,273									25,440					(2,167)
Other, net	4,307					386									(21)
Ending balance at Sep. 30, 2020	$ 3,613,136			$ 105		$ 3,317,868		$ (209,538)		$ 583,474			$ (137,347)		$ 58,574