Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 2,761,395	$ 1,866,916	$ 1,211,242
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Additions to content assets	(11,779,284)	(13,916,683)	(13,043,437)
Change in content liabilities	(757,433)	(694,011)	999,880
Amortization of content assets	10,806,912	9,216,247	7,532,088
Depreciation and amortization of property, equipment and intangibles	115,710	103,579	83,157
Stock-based compensation expense	415,180	405,376	320,657
Foreign currency remeasurement loss (gain) on debt	533,278	(45,576)	(73,953)
Other non-cash items	293,126	228,230	81,640
Deferred income taxes	70,066	(94,443)	(85,520)
Changes in operating assets and liabilities:
Other current assets	(187,623)	(252,113)	(200,192)
Accounts payable	(41,605)	96,063	199,198
Accrued expenses and other liabilities	198,183	157,778	150,422
Deferred revenue	193,247	163,846	142,277
Other non-current assets and liabilities	(194,075)	(122,531)	2,062
Net cash provided by (used in) operating activities	2,427,077	(2,887,322)	(2,680,479)
Cash flows from investing activities:
Purchases of property and equipment	(497,923)	(253,035)	(173,946)
Change in other assets	(7,431)	(134,029)	(165,174)
Net cash used in investing activities	(505,354)	(387,064)	(339,120)
Cash flows from financing activities:
Proceeds from issuance of debt	1,009,464	4,469,306	3,961,852
Debt issuance costs	(7,559)	(36,134)	(35,871)
Proceeds from issuance of common stock	235,406	72,490	124,502
Other financing activities	0	0	(1,956)
Net cash provided by financing activities	1,237,311	4,505,662	4,048,527
Effect of exchange rate changes on cash, cash equivalents and restricted cash	36,050	469	(39,682)
Net increase in cash, cash equivalents and restricted cash	3,195,084	1,231,745	989,246
Cash and cash equivalents, beginning of year	5,043,786	3,812,041	2,822,795
Cash, cash equivalents and restricted cash, end of year	8,238,870	5,043,786	3,812,041
Supplemental disclosure:
Income taxes paid	291,582	400,658	131,069
Interest paid	$ 762,904	$ 599,132	$ 375,831