Intangible Assets and Goodwill (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Intangible Assets and Goodwill [Line Items]
Weighted Average Useful Life (years)	16 years 2 months 12 days
Amortizable intangible assets, Gross Carrying Amount	$ 397,060		$ 404,590
Amortizable intangible assets, Accumulated Amortization and Other Charges	(20,745)		(21,990)
Amortizable intangible assets, Net Carrying Amount	376,315		382,600
Intangible assets not subject to amortization, Gross Carrying Amount	253,620		253,620
Intangible Assets, Gross Carrying Amount	650,680		658,210
Intangible Assets, Net Carrying Amount	629,935		636,220
Amortization of intangible assets	6,300	$ 1,700
Future amortization expense, remainder of fiscal year	18,900
Future amortization expense, 2017	25,200
Future amortization expense, 2018	24,800
Future amortization expense, 2019	24,500
Future amortization expense, 2020	24,400
Future amortization expense, 2021	24,100
Future amortization expense, after Year 2021	234,400
In-process research and development [Member]
Intangible Assets and Goodwill [Line Items]
Intangible assets not subject to amortization, Gross Carrying Amount	$ 253,620		253,620
Product licenses [Member]
Intangible Assets and Goodwill [Line Items]
Weighted Average Useful Life (years)	15 years 6 months
Amortizable intangible assets, Gross Carrying Amount	$ 24,500		31,500
Amortizable intangible assets, Accumulated Amortization and Other Charges	(1,403)		(7,869)
Amortizable intangible assets, Net Carrying Amount	$ 23,097		23,631
Developed product rights [Member]
Intangible Assets and Goodwill [Line Items]
Weighted Average Useful Life (years)	16 years 3 months 18 days
Amortizable intangible assets, Gross Carrying Amount	$ 372,560		373,090
Amortizable intangible assets, Accumulated Amortization and Other Charges	(19,342)		(14,121)
Amortizable intangible assets, Net Carrying Amount	$ 353,218		$ 358,969