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Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (196,932)	$ (427,339)
Weighted-average number of shares outstanding used to compute net loss per share, basic (in shares)	346,558	326,165
Weighted-average number of shares outstanding used to compute net loss per share, diluted (in shares)	346,558	326,165
Net loss per share, basic (in dollars per share)	$ (0.57)	$ (1.31)
Net loss per share, diluted (in dollars per share)	$ (0.57)	$ (1.31)

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

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