CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Revenues	$ 356	$ 6,835	$ 837	$ 164,792
Operating expenses:
Research and development	24,223	63,046	60,114	126,262
General and administrative	12,045	16,014	23,812	34,150
Impairment of long-lived assets	1,172	0	5,521	20,433
Impairment of goodwill and indefinite-lived intangible assets	0	51,347	0	89,485
Total operating expenses	37,440	130,407	89,447	270,330
Loss from operations	(37,084)	(123,572)	(88,610)	(105,538)
Interest and other income, net	1,030	2,802	3,565	6,095
Loss before income taxes	(36,054)	(120,770)	(85,045)	(99,443)
Income tax expense (benefit)	74	(6,264)	172	(6,070)
Net loss	$ (36,128)	$ (114,506)	$ (85,217)	$ (93,373)
Basic net loss per share (in dollars per share)	$ (0.18)	$ (0.66)	$ (0.44)	$ (0.54)
Diluted net loss per share (in dollars per share)	$ (0.18)	$ (0.66)	$ (0.44)	$ (0.54)
Shares used in computing basic net loss per share (in shares)	203,946	174,325	194,049	171,445
Shares used in computing diluted net loss per share (in shares)	203,946	174,325	194,049	171,445

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.