CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 56,513	$ 44,474
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	294,003	256,776
Equity in (earnings) losses of unconsolidated affiliates, net	3,067	(10,080)
Amortization of debt issuance costs	3,905	3,617
(Gains) losses and impairments on investments, net	(28,674)	(10,574)
Stock-based compensation	5,110	3,908
Deferred tax provision	10,231	673
Dividend received from unconsolidated entity	5,000	7,500
Proceeds from sale of trading securities	0	8,922
Changes in current assets and current liabilities, net:
Trade accounts receivable, net	(3,061)	4,496
Trade accounts receivable - DISH Network	17,262	184,077
Inventory	238	(24,330)
Other current assets	(5,430)	(6,193)
Trade accounts payable	2,364	(65,179)
Trade accounts payable - DISH Network	(3,360)	(3,061)
Accrued expenses and other	7,749	(2,505)
Changes in noncurrent assets and noncurrent liabilities, net	(17,200)	(11,763)
Other, net	5,822	2,121
Net cash flows from operating activities	353,539	382,879
Cash flows from investing activities:
Purchases of marketable investment securities	(1,632,930)	(46,533)
Sales and maturities of marketable investment securities	841,638	291,082
Expenditures for property and equipment	(248,098)	(230,530)
Refunds and other receipts related to property and equipment	77,524	0
Sale of investment in unconsolidated entity	0	17,781
Expenditures for externally marketed software	(15,000)	(17,119)
Net cash flows from investing activities	(976,866)	14,681
Cash flows from financing activities:
Repayment of debt and capital lease obligations	(18,417)	(17,718)
Net proceeds from Class A common stock options exercised	4,064	31,992
Net proceeds from Class A common stock issued under the Employee Stock Purchase Plan	4,886	4,540
Cash exchanged for Tracking Stock (Note 1)	0	(651)
Repayment of in-orbit incentive obligations	(3,272)	(3,194)
Other, net	(401)	482
Net cash flows from financing activities	(13,140)	15,451
Effect of exchange rates on cash and cash equivalents	(1,941)	967
Net increase (decrease) in cash and cash equivalents, including restricted amounts	(638,408)	413,978
Cash and cash equivalents, including restricted amounts, beginning of period	2,432,249	2,571,866
Cash and cash equivalents, including restricted amounts, end of period	1,793,841	2,985,844
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	122,017	96,463
Cash paid for income taxes	$ 2,574	$ 9,369