CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (72,580)	$ 9,948
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	262,255	309,631
Losses (gains) on investments, net	52,762	(19,791)
Equity in losses (earnings) of unconsolidated affiliates, net	3,732	11,107
Foreign currency transaction losses (gains), net	9,284	(593)
Deferred tax provision (benefit), net	(2,452)	7,014
Stock-based compensation	4,509	4,833
Amortization of debt issuance costs	2,120	3,872
Other, net	(7,295)	2,742
Changes in assets and liabilities, net:
Trade accounts receivable and contract assets, net	(5,262)	167
Other current assets, net	(11,642)	(129)
Trade accounts payable	(11,701)	(225)
Contract liabilities	(11,229)	34,024
Accrued expenses and other current liabilities	27,050	16,800
Non-current assets and non-current liabilities, net	5,729	1,374
Net cash flows from operating activities	245,280	380,774
Cash flows from investing activities:
Purchases of marketable investment securities	(555,367)	(504,264)
Sales and maturities of marketable investment securities	977,532	1,621,481
Purchase of other investments	(5,500)	0
Expenditures for property and equipment	(196,904)	(219,440)
Expenditures for externally marketed software	(19,237)	(15,329)
Net cash flows from investing activities	200,524	882,448
Cash flows from financing activities:
Repurchase and maturity of the 2019 Senior Secured Notes	0	(920,923)
Payment of finance lease obligations	(421)	(20,008)
Payment of in-orbit incentive obligations	(1,021)	(3,778)
Net proceeds from Class A common stock options exercised	436	61,503
Net proceeds from Class A common stock issued under the Employee Stock Purchase Plan	5,300	5,074
Treasury share purchase	(5,893)	0
Contribution by non-controlling interest holder	10,000	0
Purchase of non-controlling interest	0	(7,313)
Other, net	674	(267)
Net cash flows from financing activities	9,075	(885,712)
Effect of exchange rates on cash and cash equivalents	(19,232)	121
Net increase (decrease) in cash and cash equivalents	435,647	377,631
Cash and cash equivalents, including restricted amounts, beginning of period	1,521,889	929,495
Cash and cash equivalents, including restricted amounts, end of period	$ 1,957,536	$ 1,307,126