Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Class A Common Stock, Class B Common Stock and Class C Capital Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2018	$ 3,267,179	$ 21	$ 3,939,842	$ (671,779)	$ (905)
Beginning Balance (in shares) at Dec. 31, 2018		203,904,265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common and capital stock upon exercise of stock options	65,465		65,465
Issuance of common and capital stock upon exercise of stock options (in shares)		2,918,053
Vesting of restricted stock units (in shares)		2,244,631
Restricted stock units withheld for tax liability	(3)		(3)
Restricted stock units withheld for tax liability (in shares)		(94)
Share-based compensation expense	210,849		210,849
Capped Call Confirmations	(159,677)		(159,677)
Equity component of issuance of convertible senior notes maturing in 2025, net of issuance costs	355,724		355,724
Net loss	(305,361)			(305,361)
Other comprehensive loss	1,245				1,245
Ending Balance at Dec. 31, 2019	3,435,421	$ 21	4,412,200	(977,140)	340
Ending Balance (in shares) at Dec. 31, 2019		209,066,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common and capital stock upon exercise of stock options	444,029	$ 1	444,028
Issuance of common and capital stock upon exercise of stock options (in shares)		13,744,571
Vesting of restricted stock units (in shares)		3,013,365
Restricted stock units withheld for tax liability	(4)		(4)
Restricted stock units withheld for tax liability (in shares)		(55)
Share-based compensation expense	214,107		214,107
Capped Call Confirmations			0
Issuance of Class C capital stock in connection with equity offering, net of issuance costs	411,523	$ 1	411,522
Issuance of Class C capital stock in connection with equity offering, net of issuance costs (in shares)		8,800,000
Equity component of issuance of convertible senior notes maturing in 2025, net of issuance costs	154,813		154,813
Settlement of convertible senior notes	244,218	$ 1	244,217
Settlement of convertible senior notes (in shares)		6,219,049
Unwind of Capped Call Transactions		(317,865)
Net loss	(162,115)			(162,115)
Other comprehensive loss	(176)				(176)
Ending Balance at Dec. 31, 2020	4,741,816	$ 24	5,880,883	(1,139,255)	164
Ending Balance (in shares) at Dec. 31, 2020		240,525,920
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common and capital stock upon exercise of stock options	$ 127,222	$ 0	127,222
Issuance of common and capital stock upon exercise of stock options (in shares)	3,304,241	3,304,241
Vesting of restricted stock units (in shares)		2,982,148
Restricted stock units withheld for tax liability	$ (129)		(129)
Restricted stock units withheld for tax liability (in shares)		(678)
Share-based compensation expense	347,564		347,564
Issuance of Class C capital stock in connection with equity offering, net of issuance costs	544,558	$ 1	544,557
Issuance of Class C capital stock in connection with equity offering, net of issuance costs (in shares)		3,163,502
Settlement of convertible senior notes	403,295	$ 1	403,294
Settlement of convertible senior notes (in shares)		6,264,954
Unwind of Capped Call Transactions		(665,557)
Repurchases of Class C capital stock	(302,308)	$ (1)	(302,307)
Repurchase of Class C Capital stock (in shares)		(4,944,462)
Net loss	(527,777)			(527,777)
Other comprehensive loss	7,070				7,070
Ending Balance at Dec. 31, 2021	$ 5,341,311	$ 25	$ 7,001,084	$ (1,667,032)	$ 7,234
Ending Balance (in shares) at Dec. 31, 2021		250,630,068