CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 2,239,591	$ 2,431,456
Marketable investment securities, at fair value	1,060,733	814,161
Trade accounts receivable and contract assets, net (Note 3)	166,182	196,840
Trade accounts receivable - DISH Network, net	56,861	43,295
Inventory	85,995	83,595
Prepaids and deposits	59,751	54,533
Other current assets	13,163	91,671
Total current assets	3,682,276	3,715,551
Noncurrent Assets:
Property and equipment, net	3,461,004	3,465,471
Regulatory authorizations, net	536,548	536,936
Goodwill	504,173	504,173
Other intangible assets, net	55,273	58,955
Investments in unconsolidated entities	173,601	161,427
Other receivables - DISH Network	93,287	92,687
Other noncurrent assets, net	255,582	214,814
Total noncurrent assets	5,079,468	5,034,463
Total assets	8,761,744	8,750,014
Current Liabilities:
Trade accounts payable	103,785	108,406
Trade accounts payable - DISH Network	3,742	4,753
Current portion of long-term debt and capital lease obligations	41,424	40,631
Contract with Customer, Liability, Current	65,333	65,959
Accrued interest	57,297	47,616
Accrued compensation	32,905	47,756
Accrued expenses and other	105,291	98,769
Total current liabilities	409,777	413,890
Noncurrent Liabilities:
Long-term debt and capital lease obligations, net	3,585,972	3,594,213
Deferred tax liabilities, net	433,174	436,023
Other noncurrent liabilities	127,306	128,503
Total noncurrent liabilities	4,146,452	4,158,739
Total liabilities	4,556,229	4,572,629
Commitments and contingencies (Note 15)
Stockholders’ Equity:
Preferred Stock	0	0
Additional paid-in capital	3,685,577	3,669,461
Accumulated other comprehensive loss	(111,413)	(130,154)
Accumulated earnings	714,423	721,316
Treasury stock, at cost	(98,162)	(98,162)
Total EchoStar Corporation stockholders’ equity	4,190,527	4,162,563
Other noncontrolling interests	14,988	14,822
Total stockholders’ equity	4,205,515	4,177,385
Total liabilities and stockholders’ equity	8,761,744	8,750,014
Class A common stock
Stockholders’ Equity:
Common stock	54	54
Class B common stock
Stockholders’ Equity:
Common stock	48	48
Class C common stock
Stockholders’ Equity:
Common stock	0	0
Class D common stock
Stockholders’ Equity:
Common stock	$ 0	$ 0