Goodwill and Other Intangible Assets - Changes In Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-lived Intangible Assets [Roll Forward]
Amortization	$ (39,765)	$ (53,472)	$ (61,443)
Impairments	(29,497)	(231,086)	(128,127)
Balance at end of period	211,601
IPR&D
Indefinite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	4,400	149,161
Acquisitions	0	0
Impairments	(200)	(139,461)
Reclassifications		(5,300)
Balance at end of period	4,200	4,400	149,161
Finite-lived Intangible Assets [Roll Forward]
Impairments	(200)
Product licensing rights
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	268,631	402,340
Acquisitions	87	50
Amortization	(38,236)	(50,567)
Impairments	(29,297)	(88,492)
Reclassifications		5,300
Balance at end of period	201,185	268,631	402,340
Trademarks
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	9,696	10,624
Acquisitions	0	0
Amortization	(927)	(928)
Impairments	0	0
Reclassifications		0
Balance at end of period	8,769	9,696	10,624
Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	1,907	2,167
Acquisitions	0	0
Amortization	(260)	(260)
Impairments	0	0
Reclassifications		0
Balance at end of period	1,647	1,907	2,167
Other intangibles
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	342	5,192
Acquisitions	0	0
Amortization	(342)	(1,717)
Impairments		(3,133)
Reclassifications		0
Balance at end of period	$ 0	$ 342	$ 5,192