Condensed Consolidated Statements of Earnings - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Total revenues		$ 170,051	$ 141,329	$ 322,557	$ 272,261
Costs and expenses
Cost of goods sold	[1]	20,457	25,028	38,389	39,982
Research and development		16,385	15,455	37,224	49,735
Selling, general and administrative		100,476	69,535	190,935	130,992
Amortization of intangible assets		20,644	5,948	41,288	11,955
Contingent consideration expense (gain)		743	(8,750)	1,408	(7,730)
Total costs and expenses		158,705	107,216	309,244	224,934
Operating earnings		11,346	34,113	13,313	47,327
Other income (expense)
Interest expense		(1,810)	(5,467)	(3,752)	(11,564)
Interest and other income, net		1,788	2,589	16,486	6,401
Total other income (expense)		(22)	(2,878)	12,734	(5,163)
Earnings before income taxes		11,324	31,235	26,047	42,164
Income tax (benefit) expense		3,459	7,509	(7,434)	12,744
Net earnings		$ 7,865	$ 23,726	$ 33,481	$ 29,420
Earnings per share
Basic (in dollars per share)		$ 0.15	$ 0.45	$ 0.63	$ 0.56
Diluted (in dollars per share)		$ 0.14	$ 0.43	$ 0.57	$ 0.54
Weighted average shares outstanding
Basic (in shares)		53,426,163	53,005,344	53,378,319	52,985,472
Diluted (in shares)		61,397,159	54,724,146	61,401,694	54,601,533
Net product sales
Revenues
Total revenues		$ 165,459	$ 138,628	$ 312,923	$ 267,009
Royalty revenues
Revenues
Total revenues		$ 4,592	$ 2,701	$ 9,634	$ 5,252

[1] Excludes amortization of acquired intangible assets