Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total revenue, net	$ 369,193	$ 583,187	$ 614,060
Less: Cost of goods sold	108,631	121,327	131,444
Less: Cost of goods sold - restructuring inventory	18,078
Gross margin	242,484	461,860	482,616
Operating expenses:
Selling, general and administrative	304,416	408,334	463,312
Research and development	30,411	29,307	38,959
Restructuring	13,526	13,717
Total operating expenses	348,353	451,358	502,271
Operating (loss) income	(105,869)	10,502	(19,655)
Interest income	2,819	1,220	4,901
Interest expense	(15)	(129)	(2,605)
Other (expense) income, net	(740)	(302)	104
(Loss) income from operations before taxes	(103,805)	11,291	(17,255)
Provision for income taxes	(1,998)	(3,562)	(745)
Net (loss) income	$ (105,803)	$ 7,729	$ (18,000)
(Loss) earnings per share:
Basic	$ (0.26)	$ 0.02	$ (0.05)
Diluted	$ (0.26)	$ 0.02	$ (0.05)
Weighted average shares outstanding:
Basic	401,155	395,992	381,759
Diluted	401,155	402,480	381,759
Product Revenue, Net
Total revenue, net	$ 366,511	$ 580,320	$ 607,025
Licensing and Royalty Revenue
Total revenue, net	$ 2,682	$ 2,867	$ 7,035