CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue
Total revenue, net	$ 54,515	$ 55,779	$ 130,418	$ 105,595
Operating expenses
Cost of sales	6,769	2,447	8,753	4,302
Selling, general and administrative	47,759	52,169	144,964	148,898
Research and development	13,605	10,973	39,413	35,118
Other (income) expense, net	2,645	(311)	(695)	647
Total cost of sales and operating expenses	70,778	65,278	192,435	188,965
Loss from operations	(16,263)	(9,499)	(62,017)	(83,370)
Interest expense	(1,400)	0	(1,465)	0
Interest income	4,514	1,464	12,429	2,209
Net loss before income taxes	(13,149)	(8,035)	(51,053)	(81,161)
Income tax expense	298	954	92	973
Net loss	(13,447)	(8,989)	(51,145)	(82,134)
Other comprehensive loss:
Unrealized gain (loss) on available-for-sale securities, net of tax of nil	73	326	114	(675)
Comprehensive loss	$ (13,374)	$ (8,663)	$ (51,031)	$ (82,809)
Basic loss per share (in usd per share)	$ (0.09)	$ (0.06)	$ (0.36)	$ (0.58)
Diluted loss per share (in usd per share)	$ (0.09)	$ (0.06)	$ (0.36)	$ (0.58)
Weighted-average common shares outstanding used in computation of basic loss per share (in shares)	142,847,000	141,856,000	143,085,000	141,831,000
Weighted-average common shares outstanding used in computation of diluted loss per share (in shares)	142,847,000	141,856,000	143,085,000	141,831,000
Product revenue, net
Revenue
Total revenue, net	$ 40,781	$ 25,502	$ 116,218	$ 75,142
License, royalty and collaboration revenue
Revenue
Total revenue, net	$ 13,734	$ 30,277	$ 14,200	$ 30,453