Balance Sheet Components - Components of Content Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Content assets, net	$ 25,067,633		$ 25,067,633		$ 24,504,567
Amortization of content assets	2,733,743	$ 2,279,977	7,824,287	$ 6,636,578
Licensed content, net
Finite-Lived Intangible Assets [Line Items]
Net content	14,297,143		14,297,143		14,703,352
Unamortized cost in year one	5,743,000		5,743,000
Unamortized cost in year two	3,675,000		3,675,000
Unamortized cost in year three	2,264,000		2,264,000
Amortization of content assets	1,885,259	1,810,757	5,628,499	5,382,225
Produced content, net
Finite-Lived Intangible Assets [Line Items]
Net content	5,186,247		5,186,247		4,382,685
In production	4,696,990		4,696,990		4,750,664
In development and pre-production	887,253		887,253		667,866
Content assets, net	10,770,490		10,770,490		$ 9,801,215
Unamortized cost in year one	1,894,000		1,894,000
Unamortized cost in year two	1,465,000		1,465,000
Unamortized cost in year three	1,025,000		1,025,000
Amortization of content assets	$ 848,484	$ 469,220	$ 2,195,788	$ 1,254,353