CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows From Operating Activities:
Net income (loss)	$ 243,238	$ 448,846
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	245,697	176,341
Realized and unrealized losses (gains) on investments, derivatives and other	29,220	(42,546)
Non-cash, stock-based compensation	12,037	15,285
Deferred tax expense (benefit)	70,745	122,386
Changes in allowance for credit losses	171	(4,599)
Change in long-term deferred revenue and other long-term liabilities	1,214	4,017
Other, net	38,579	58,885
Changes in current assets and current liabilities, net	96,473	(73,271)
Net cash flows from operating activities	737,374	705,344
Cash Flows From Investing Activities:
Purchases of marketable investment securities	(368,091)	(55,200)
Sales and maturities of marketable investment securities	914,422	2,512,274
Purchases of property and equipment	(707,210)	(629,374)
Capitalized interest related to FCC authorizations (Note 2)	(199,395)	(266,917)
Purchases of FCC authorizations, including deposits		(7,206,757)
Other, net	(704)	3,348
Net cash flows from investing activities	(360,978)	(5,642,626)
Cash Flows From Financing Activities:
Repayment of long-term debt and finance lease obligations	(25,626)	(5,818)
Redemption and repurchases of senior notes	(1,443,179)	(1,175)
Proceeds from issuance of senior notes	1,500,000
Net proceeds from Class A common stock options exercised and stock issued under the Employee Stock Purchase Plan	2,867	4,616
Debt issuance costs and debt (discount) premium	21,635
Proceeds from accrued interest	34,760
Other, net	(5,073)	4,428
Net cash flows from financing activities	85,384	2,051
Net increase (decrease) in cash, cash equivalents, restricted cash and cash equivalents	461,780	(4,935,231)
Cash, cash equivalents, restricted cash and cash equivalents, beginning of period (Note 5)	1,847,981	7,734,260
Cash, cash equivalents, restricted cash and cash equivalents, end of period (Note 5)	$ 2,309,761	$ 2,799,029