Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income	$ 1,353,013	$ 720,196	$ 3,059,728	$ 1,429,263
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Additions to content assets	(4,096,750)	(2,510,782)	(7,381,326)	(5,805,057)
Change in content liabilities	(312,208)	(108,432)	(578,248)	150,513
Amortization of content assets	2,806,803	2,607,159	5,525,999	5,090,544
Depreciation and amortization of property, equipment and intangibles	38,434	26,661	74,175	55,178
Stock-based compensation expense	101,583	104,210	208,813	201,229
Foreign currency remeasurement loss (gain) on debt	63,074	119,161	(190,256)	26,101
Other non-cash items	108,103	70,301	180,760	135,749
Deferred income taxes	51,127	223,308	210,860	269,927
Changes in operating assets and liabilities:
Other current assets	(52,373)	3,066	(273,928)	(124,287)
Accounts payable	72,313	(112,027)	(65,000)	(261,180)
Accrued expenses and other liabilities	(171,430)	(105,450)	6,467	108,741
Deferred revenue	47,093	42,508	69,372	104,516
Other non-current assets and liabilities	(72,543)	(38,803)	(133,911)	(80,249)
Net cash provided by (used in) operating activities	(63,761)	1,041,076	713,505	1,300,988
Cash flows from investing activities:
Purchases of property and equipment	(110,278)	(141,741)	(191,279)	(239,756)
Change in other assets	(1,000)	(260)	(5,615)	(548)
Net cash used in investing activities	(111,278)	(142,001)	(196,894)	(240,304)
Cash flows from financing activities:
Proceeds from issuance of debt	0	1,009,464	0	1,009,464
Debt issuance costs	0	(7,559)	0	(7,559)
Repayments of debt	0	0	(500,000)	0
Proceeds from issuance of common stock	19,749	89,060	67,820	132,754
Repurchases of common stock	(500,022)	0	(500,022)	0
Net cash provided by (used in) financing activities	(480,273)	1,090,965	(932,202)	1,134,659
Effect of exchange rate changes on cash, cash equivalents and restricted cash	23,477	11,819	(18,661)	(59,083)
Net increase (decrease) in cash, cash equivalents and restricted cash	(631,835)	2,001,859	(434,252)	2,136,260
Cash, cash equivalents and restricted cash at beginning of period	8,436,453	5,178,187	8,238,870	5,043,786
Cash, cash equivalents and restricted cash at end of period	$ 7,804,618	$ 7,180,046	$ 7,804,618	$ 7,180,046