Supplemental Guarantor and Non-Guarantor Financial Information (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 1,361,555		$ 1,822,561
Marketable investment securities, at fair value	1,202,490		455,602
Trade accounts receivable and contract assets	217,481	$ 189,737	196,840
Trade accounts receivable - DISH Network	10,588	38,641	38,641
Inventory	70,061		83,595
Advances to affiliates, net	100,730		114,858
Other current assets	59,033		130,341
Total current assets	3,021,938		2,842,438
Property and equipment, net	2,643,471		2,753,098
Regulatory authorizations	465,658		465,658
Goodwill	504,173		504,173
Other intangible assets, net	47,609		58,582
Investments in unconsolidated entities	30,301		30,587
Investment in subsidiaries	0		0
Advances to affiliates	0		0
Deferred tax asset	10,168		3,700
Other noncurrent assets, net	241,917		199,114
Total assets	6,965,235	6,873,325	6,857,350
Liabilities and Shareholders’ Equity
Trade accounts payable	116,741		102,816
Trade accounts payable - DISH Network	456		3,769
Current portion of long-term debt and capital lease obligations	1,030,088		40,631
Advances from affiliates, net	929		477
Accrued expenses and other	237,997		235,227
Total current liabilities	1,386,211		382,920
Long-term debt and capital lease obligations, net	2,582,819		3,594,213
Deferred tax liabilities, net	479,671		439,631
Advances from affiliates	33,522		33,715
Other noncurrent liabilities	104,868		107,627
Total HSS shareholders’ equity	2,363,419		2,284,422
Noncontrolling interests	14,725		14,822
Total liabilities and shareholders’ equity	6,965,235	$ 6,873,325	6,857,350
Eliminations
Assets
Cash and cash equivalents	0		0
Marketable investment securities, at fair value	0		0
Trade accounts receivable and contract assets	0		0
Trade accounts receivable - DISH Network	0		0
Inventory	0		0
Advances to affiliates, net	(428,497)		(241,548)
Other current assets	0		(401)
Total current assets	(428,497)		(241,949)
Property and equipment, net	0		0
Regulatory authorizations	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investments in unconsolidated entities	0		0
Investment in subsidiaries	(3,489,944)		(3,464,998)
Advances to affiliates	(87,314)		(81,444)
Deferred tax asset	(140,216)		(110,546)
Other noncurrent assets, net	0		0
Total assets	(4,145,971)		(3,898,937)
Liabilities and Shareholders’ Equity
Trade accounts payable	0		0
Trade accounts payable - DISH Network	0		0
Current portion of long-term debt and capital lease obligations	0		0
Advances from affiliates, net	(428,497)		(241,548)
Accrued expenses and other	0		(401)
Total current liabilities	(428,497)		(241,949)
Long-term debt and capital lease obligations, net	0		0
Deferred tax liabilities, net	(140,216)		(110,546)
Advances from affiliates	(87,314)		(81,444)
Other noncurrent liabilities	0		0
Total HSS shareholders’ equity	(3,489,944)		(3,464,998)
Noncontrolling interests	0		0
Total liabilities and shareholders’ equity	(4,145,971)		(3,898,937)
HSS
Assets
Cash and cash equivalents	1,291,333		1,746,878
Marketable investment securities, at fair value	1,201,132		454,500
Trade accounts receivable and contract assets	0		0
Trade accounts receivable - DISH Network	0		0
Inventory	0		0
Advances to affiliates, net	7,829		119,605
Other current assets	116		64
Total current assets	2,500,410		2,321,047
Property and equipment, net	0		0
Regulatory authorizations	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investments in unconsolidated entities	0		0
Investment in subsidiaries	3,308,536		3,260,790
Advances to affiliates	700		700
Deferred tax asset	140,216		110,546
Other noncurrent assets, net	0		0
Total assets	5,949,862		5,693,083
Liabilities and Shareholders’ Equity
Trade accounts payable	0		0
Trade accounts payable - DISH Network	0		0
Current portion of long-term debt and capital lease obligations	986,843		0
Advances from affiliates, net	159,157		0
Accrued expenses and other	56,233		43,518
Total current liabilities	1,202,233		43,518
Long-term debt and capital lease obligations, net	2,384,210		3,365,143
Deferred tax liabilities, net	0		0
Advances from affiliates	0		0
Other noncurrent liabilities	0		0
Total HSS shareholders’ equity	2,363,419		2,284,422
Noncontrolling interests	0		0
Total liabilities and shareholders’ equity	5,949,862		5,693,083
Guarantor Subsidiaries
Assets
Cash and cash equivalents	40,695		42,373
Marketable investment securities, at fair value	1,358		1,102
Trade accounts receivable and contract assets	151,535		133,735
Trade accounts receivable - DISH Network	10,096		38,286
Inventory	58,097		59,711
Advances to affiliates, net	498,705		229,488
Other current assets	23,345		98,890
Total current assets	783,831		603,585
Property and equipment, net	2,352,820		2,459,703
Regulatory authorizations	465,658		465,658
Goodwill	504,173		504,173
Other intangible assets, net	47,609		58,582
Investments in unconsolidated entities	30,301		30,587
Investment in subsidiaries	181,408		204,208
Advances to affiliates	86,614		80,744
Deferred tax asset	0		0
Other noncurrent assets, net	230,502		185,839
Total assets	4,682,916		4,593,079
Liabilities and Shareholders’ Equity
Trade accounts payable	101,470		82,300
Trade accounts payable - DISH Network	456		3,769
Current portion of long-term debt and capital lease obligations	38,928		35,886
Advances from affiliates, net	185,431		185,161
Accrued expenses and other	129,319		145,362
Total current liabilities	455,604		452,478
Long-term debt and capital lease obligations, net	197,410		226,997
Deferred tax liabilities, net	618,915		549,217
Advances from affiliates	0		0
Other noncurrent liabilities	102,773		104,249
Total HSS shareholders’ equity	3,308,214		3,260,138
Noncontrolling interests	0		0
Total liabilities and shareholders’ equity	4,682,916		4,593,079
Non-Guarantor Subsidiaries
Assets
Cash and cash equivalents	29,527		33,310
Marketable investment securities, at fair value	0		0
Trade accounts receivable and contract assets	65,946		63,105
Trade accounts receivable - DISH Network	492		355
Inventory	11,964		23,884
Advances to affiliates, net	22,693		7,313
Other current assets	35,572		31,788
Total current assets	166,194		159,755
Property and equipment, net	290,651		293,395
Regulatory authorizations	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investments in unconsolidated entities	0		0
Investment in subsidiaries	0		0
Advances to affiliates	0		0
Deferred tax asset	10,168		3,700
Other noncurrent assets, net	11,415		13,275
Total assets	478,428		470,125
Liabilities and Shareholders’ Equity
Trade accounts payable	15,271		20,516
Trade accounts payable - DISH Network	0		0
Current portion of long-term debt and capital lease obligations	4,317		4,745
Advances from affiliates, net	84,838		56,864
Accrued expenses and other	52,445		46,748
Total current liabilities	156,871		128,873
Long-term debt and capital lease obligations, net	1,199		2,073
Deferred tax liabilities, net	972		960
Advances from affiliates	120,836		115,159
Other noncurrent liabilities	2,095		3,378
Total HSS shareholders’ equity	181,730		204,860
Noncontrolling interests	14,725		14,822
Total liabilities and shareholders’ equity	$ 478,428		$ 470,125