Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 1,706,715	$ 709,067
Adjustments to reconcile net income to net cash provided by operating activities:
Additions to content assets	(3,284,576)	(3,294,275)
Change in content liabilities	(266,040)	258,945
Amortization of content assets	2,719,196	2,483,385
Depreciation and amortization of property, equipment and intangibles	35,741	28,517
Stock-based compensation expense	107,230	97,019
Foreign currency remeasurement gain on debt	(253,330)	(93,060)
Other non-cash items	72,657	65,448
Deferred income taxes	159,733	46,619
Changes in operating assets and liabilities:
Other current assets	(221,555)	(127,353)
Accounts payable	(137,313)	(149,153)
Accrued expenses and other liabilities	177,897	214,191
Deferred revenue	22,279	62,008
Other non-current assets and liabilities	(61,368)	(41,446)
Net cash provided by operating activities	777,266	259,912
Cash flows from investing activities:
Purchases of property and equipment	(81,001)	(98,015)
Change in other assets	(4,615)	(288)
Net cash used in investing activities	(85,616)	(98,303)
Cash flows from financing activities:
Repayments of debt	(500,000)	0
Proceeds from issuance of common stock	48,071	43,694
Net cash provided by (used in) financing activities	(451,929)	43,694
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(42,138)	(70,902)
Net increase in cash, cash equivalents and restricted cash	197,583	134,401
Cash, cash equivalents and restricted cash at beginning of period	8,238,870	5,043,786
Cash, cash equivalents and restricted cash at end of period	$ 8,436,453	$ 5,178,187