CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows From Operating Activities:
Net income (loss)	$ 685,578	$ 377,946
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	509,098	521,115
Realized and unrealized losses (gains) on investments	(262,727)	(6,906)
Non-cash, stock-based compensation	14,823	20,644
Deferred tax expense (benefit)	72,427	58,118
Other, net	27,161	49,358
Changes in current assets and current liabilities, net	402,796	130,881
Net cash flows from operating activities from continuing operations	1,449,156	1,151,156
Net cash flows from operating activities from discontinued operations, net		(30,007)
Cash Flows From Investing Activities:
Purchases of marketable investment securities	(112,864)	(2,679,365)
Sales and maturities of marketable investment securities	1,892,987	2,925,112
Purchases of property and equipment	(534,746)	(600,610)
Purchase of FCC authorization - H Block wireless spectrum licenses (Note 10)		(1,343,372)
AWS-3 FCC license deposits (Note 10)	(9,075,567)
AWS-3 FCC deposit refund (Note 10)	400,000
Other, net	(38)	41,548
Net cash flows from investing activities from continuing operations	(7,430,228)	(1,656,687)
Net cash flows from investing activities from discontinued operations, net, including $0 and $0 of purchases of property and equipment, respectively		20,847
Cash Flows From Financing Activities:
Redemption and repurchases of long-term debt	(650,001)	(101,208)
Capital contributions from Northstar Manager and SNR Management (Note 10)	204,200
Repayment of long-term debt and capital lease obligations	(15,053)	(15,606)
Net proceeds from Class A common stock options exercised and stock issued under the Employee Stock Purchase Plan	18,001	29,696
Other, net	13,678	19,986
Net cash flows from financing activities from continuing operations	(429,175)	(67,132)
Net increase (decrease) in cash and cash equivalents from continuing operations	(6,410,247)	(572,663)
Cash and cash equivalents, beginning of period from continuing operations	7,104,496	4,700,022
Cash and cash equivalents, end of period from continuing operations	$ 694,249	4,127,359
Net increase (decrease) in cash and cash equivalents from discontinued operations		(9,160)
Cash and cash equivalents, beginning of period from discontinued operations		$ 9,160