Condensed Consolidated Statements of Earnings (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues
Total revenues	$ 135,563	$ 170,051	$ 289,327	$ 322,557
Costs and expenses
Cost of goods sold	21,091	20,457	44,551	38,389
Research and development	24,379	16,385	45,591	37,224
Selling, general and administrative	86,782	100,476	172,379	190,935
Amortization of intangible assets	20,108	20,644	40,074	41,288
Contingent consideration expense (gain)	790	743	(857)	1,408
Total costs and expenses	153,150	158,705	301,738	309,244
Operating earnings (loss)	(17,587)	11,346	(12,411)	13,313
Other income (expense)
Interest expense	(910)	(1,810)	(2,415)	(3,752)
Interest and other income, net	1,370	1,788	6,716	16,486
Total other income (expense)	460	(22)	4,301	12,734
Earnings (loss) before income taxes	(17,127)	11,324	(8,110)	26,047
Income tax expense (benefit)	(16,296)	3,459	(24,227)	(7,434)
Net earnings (loss)	$ (831)	$ 7,865	$ 16,117	$ 33,481
Earnings (loss) per share
Basic (in dollars per share)	$ (0.02)	$ 0.15	$ 0.30	$ 0.63
Diluted (in dollars per share)	$ (0.02)	$ 0.14	$ 0.29	$ 0.57
Weighted average shares outstanding
Basic (in shares)	54,502,993	53,426,163	54,442,463	53,378,319
Diluted (in shares)	54,502,993	61,397,159	59,035,154	61,401,694
Net product sales
Revenues
Total revenues	$ 128,336	$ 165,459	$ 268,911	$ 312,923
Royalty revenues
Revenues
Total revenues	$ 7,227	$ 4,592	$ 20,416	$ 9,634