Discontinued Operations - Results of Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale - RX Pharmaceuticals - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 405,100	$ 975,000	$ 967,500
Cost of sales	258,400	645,100	619,500
Gross profit	146,700	329,900	348,000
Distribution	6,100	15,200	14,100
Research and development	30,800	54,800	67,300
Selling	16,300	30,100	25,100
Administration	36,400	31,800	39,100
Impairment charges	0	346,800	170,700
Restructuring charges	0	300	300
Other operating expense (income)	(400)	700	1,300
Total operating expenses	89,200	479,700	317,900
Operating income	57,500	(149,800)	30,100
Interest expense, net	800	3,500	4,300
Other (income) expense, net	(1,600)	2,000	2,800
Income before income taxes	58,300	(155,300)	23,000
Gain on disposal of discontinued operations before tax	(47,500)	0	0
Income (loss) from discontinued operation, before income tax	105,800	(155,300)	23,000
Income tax expense	43,800	51,500	35,600
Income (loss) from discontinued operations, net of tax	$ 62,000	$ (206,800)	$ (12,600)