Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Accumulated Deficit [Member]
Balance at Dec. 31, 2022	$ 384,950	$ 9	$ 4,296,841	$ (1,664)	$ (3,910,236)
Balance (in shares) at Dec. 31, 2022		87,950
Exercise of options for common stock	22,808		22,808
Exercise of options for common stock, shares		267
Vest of restricted stock units		390
Issuance of common stock under employee stock purchase plan	5,229		5,229
Issuance of common stock under employee stock purchase plan, shares		77
Stock-based compensation	41,250		41,250
Issuance Of Common Stock For Conversion Of 2024 Notes Value	693,377		693,377
Issuance of common stock for conversion of 2024 Notes, Shares		4,456
Partial settlement of capped call share options for 2024 Notes	80,645		80,645
Unrealized gains from available-for-sale securities, net of tax	1,245			1,245
Net Income (Loss)	(516,755)				(516,755)
Balance at Mar. 31, 2023	712,749	$ 9	5,140,150	(419)	(4,426,991)
Balance (in shares) at Mar. 31, 2023		93,140
Balance at Dec. 31, 2022	384,950	$ 9	4,296,841	(1,664)	(3,910,236)
Balance (in shares) at Dec. 31, 2022		87,950
Partial settlement of capped call share options for 2024 Notes	80,645
Net Income (Loss)	(581,632)
Balance at Sep. 30, 2023	764,357	$ 9	5,256,854	(638)	(4,491,868)
Balance (in shares) at Sep. 30, 2023		93,537
Balance at Mar. 31, 2023	712,749	$ 9	5,140,150	(419)	(4,426,991)
Balance (in shares) at Mar. 31, 2023		93,140
Exercise of options for common stock	5,861		5,861
Exercise of options for common stock, shares		80
Vest of restricted stock units		54
Stock-based compensation	47,377		47,377
Unrealized gains from available-for-sale securities, net of tax	(636)			(636)
Net Income (Loss)	(23,940)				(23,940)
Balance at Jun. 30, 2023	741,411	$ 9	5,193,388	(1,055)	(4,450,931)
Balance (in shares) at Jun. 30, 2023		93,274
Exercise of options for common stock	9,873		9,873
Exercise of options for common stock, shares		142
Vest of restricted stock units		45
Issuance of common stock under employee stock purchase plan	5,532		5,532
Issuance of common stock under employee stock purchase plan, shares		76
Stock-based compensation	48,061		48,061
Unrealized gains from available-for-sale securities, net of tax	417			417
Net Income (Loss)	(40,937)				(40,937)
Balance at Sep. 30, 2023	764,357	$ 9	5,256,854	(638)	(4,491,868)
Balance (in shares) at Sep. 30, 2023		93,537
Balance at Dec. 31, 2023	859,337	$ 9	5,304,623	918	(4,446,213)
Balance (in shares) at Dec. 31, 2023		93,732
Exercise of options for common stock	15,579		15,579
Exercise of options for common stock, shares		207
Vest of restricted stock units		461
Issuance of common stock under employee stock purchase plan	6,561		6,561
Issuance of common stock under employee stock purchase plan, shares		90
Stock-based compensation	45,205		45,205
Unrealized gains from available-for-sale securities, net of tax	(1,609)			(1,609)
Net Income (Loss)	36,119				36,119
Balance at Mar. 31, 2024	961,192	$ 9	5,371,968	(691)	(4,410,094)
Balance (in shares) at Mar. 31, 2024		94,490
Balance at Dec. 31, 2023	859,337	$ 9	5,304,623	918	(4,446,213)
Balance (in shares) at Dec. 31, 2023		93,732
Partial settlement of capped call share options for 2024 Notes	0
Net Income (Loss)	76,190
Balance at Sep. 30, 2024	1,221,071	$ 10	5,588,839	2,245	(4,370,023)
Balance (in shares) at Sep. 30, 2024		95,493
Balance at Mar. 31, 2024	961,192	$ 9	5,371,968	(691)	(4,410,094)
Balance (in shares) at Mar. 31, 2024		94,490
Exercise of options for common stock	39,918	$ 1	39,917
Exercise of options for common stock, shares		468
Vest of restricted stock units		131
Stock-based compensation	55,654		55,654
Issuance Of Common Stock For Conversion Of 2024 Notes Value	14,184		14,184
Issuance of common stock for conversion of 2024 Notes, Shares		194
Unrealized gains from available-for-sale securities, net of tax	(339)			(339)
Net Income (Loss)	6,460				6,460
Balance at Jun. 30, 2024	1,077,069	$ 10	5,481,723	(1,030)	(4,403,634)
Balance (in shares) at Jun. 30, 2024		95,283
Exercise of options for common stock	8,588		8,588
Exercise of options for common stock, shares		118
Vest of restricted stock units		39
Issuance of common stock under employee stock purchase plan	5,644		5,644
Issuance of common stock under employee stock purchase plan, shares		53
Stock-based compensation	48,996		48,996
Issuance Of Common Stock For Conversion Of 2024 Notes Value	1		1
Modification of 2017 Capped Calls	43,887		43,887
Unrealized gains from available-for-sale securities, net of tax	3,275			3,275
Net Income (Loss)	33,611				33,611
Balance at Sep. 30, 2024	$ 1,221,071	$ 10	$ 5,588,839	$ 2,245	$ (4,370,023)
Balance (in shares) at Sep. 30, 2024		95,493