Discontinued Operations - Cash Flow Information (Details) - USD ($) $ in Thousands			12 Months Ended
	Mar. 08, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from discontinued operations investing activities:
Net proceeds from sale of businesses			$ 1,491,900	$ 187,800	$ 182,500
Discontinued Operations, Disposed of by Sale | RX Pharmaceuticals
Cash flows from discontinued operations operating activities:
Depreciation and amortization			15,400	97,000	99,400
Restructuring charges			0	300	300
Impairment charges			0	346,800	170,700
Share-based compensation			10,800	5,200	5,500
Gain on sale of business			(47,500)	0	0
Cash flows from discontinued operations investing activities:
Asset acquisitions	$ (53,300)	$ (16,400)	(69,700)	(900)	(49,100)
Additions to property, plant and equipment			(16,100)	(10,200)	(16,300)
Net proceeds from sale of businesses			$ 1,491,900	$ 0	$ 0