Condensed Consolidated Statements of Stockholders' Equity - 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		87,950,000
Exercise of options for common stock	22,808		22,808
Exercise of options for common stock, shares		267,000
Vest of restricted stock units/awards		390,000
Issuance of common stock for exchange of 2024 Notes	693,377		693,377
Issuance of common stock for exchange of 2024 Notes, shares		4,456,000
Partial settlement of capped call share options for 2024 Notes	80,645		80,645
Issuance of common stock under employee stock purchase plan	5,229		5,229
Issuance of common stock under employee stock purchase plan, shares		77,000
Stock-based compensation	41,250		41,250
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		93,140,000
Balance at Dec. 31, 2023	859,337	$ 9	5,304,623	918	(4,446,213)
Balance (in shares) at Dec. 31, 2023		93,732,000
Exercise of options for common stock	15,579		15,579
Exercise of options for common stock, shares		207,000
Vest of restricted stock units/awards		461,000
Partial settlement of capped call share options for 2024 Notes	0
Issuance of common stock under employee stock purchase plan	6,561		6,561
Issuance of common stock under employee stock purchase plan, shares		90,000
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		94,490,000