CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Total revenue, net	$ 1,542,448	$ 1,371,868	$ 1,517,557
Costs and expenses:
Cost of goods sold	597,808	520,834	564,681
Research and development	93,051	77,381	79,573
In-process research and development	0	0	64,916
Selling, general and administrative	637,445	594,526	687,599
Intangible asset amortization	16,914	27,757	27,028
Total costs and expenses	1,345,218	1,220,498	1,423,797
Operating income	197,230	151,370	93,760
Interest income	6,737	9,297	10,779
Interest expense	(50,395)	(71,581)	(53,957)
Gain from sale of business	41,798	0	0
Other income, net	19,307	4,434	9,522
Income before income taxes	214,677	93,520	60,104
Provision (benefit) for income taxes	45,602	(40,372)	9,903
Net income	$ 169,075	$ 133,892	$ 50,201
Net income per share
Basic (in dollars per share)	$ 2.00	$ 1.58	$ 0.59
Diluted (in dollars per share)	$ 1.98	$ 1.57	$ 0.58
Weighted average common shares outstanding (See Note 13):
Basic (in shares)	84,698	84,650	85,637
Diluted (in shares)	85,485	85,228	86,494