CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net product revenue	$ 68,129	$ 41,504	$ 120,640	$ 68,682
Cost of products sold	6,366	2,788	11,943	4,310
Gross profit	61,763	38,716	108,697	64,372
Operating expenses:
Research and development expenses	4,255	4,051	8,609	7,119
Selling, general and administrative expenses	48,624	47,406	94,205	96,029
Total operating expense	52,879	51,457	102,814	103,148
Operating income (loss)	8,884	(12,741)	5,883	(38,776)
Investment and other (expense) income, net	(34)	1,126	363	2,504
Interest expense	(2,355)	(2,716)	(4,593)	(5,308)
Income (loss) before income taxes	6,495	(14,331)	1,653	(41,580)
Income tax benefit	(3,170)	(509)	(3,092)	(416)
Net income (loss)	$ 9,665	$ (13,822)	$ 4,745	$ (41,164)
Net income (loss) per share - basic (in dollars per share)	$ 0.10	$ (0.14)	$ 0.05	$ (0.44)
Net income (loss) per share - diluted (in dollars per share)	$ 0.10	$ (0.14)	$ 0.05	$ (0.44)
Weighted average number of shares outstanding - basic (in shares)	96,726	96,151	96,664	93,922
Weighted average number of shares outstanding - diluted (in shares)	99,087	96,151	98,890	93,922