Goodwill and Intangible Assets - Gross Carrying Amounts and Net Book Values of Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,346,586	$ 3,395,214
Accumulated Amortization	(917,810)	(1,200,163)
Total	7,428,776	2,195,051
Intangible assets, gross	8,505,839	3,395,214
Intangible assets, net	7,588,029	2,195,051
Acquired IPR&D assets
Finite-Lived Intangible Assets [Line Items]
In-process research and development	$ 159,253	0
Acquired developed technologies
Finite-Lived Intangible Assets [Line Items]
Remaining Weighted- Average Useful Life (In years)	11 years 10 months 24 days
Gross Carrying Amount	$ 8,330,958	3,379,162
Accumulated Amortization	(902,182)	(1,184,111)
Total	$ 7,428,776	2,195,051
Manufacturing contracts
Finite-Lived Intangible Assets [Line Items]
Remaining Weighted- Average Useful Life (In years)	0 years
Gross Carrying Amount	$ 12,721	13,135
Accumulated Amortization	(12,721)	(13,135)
Total	$ 0	0
Trademarks
Finite-Lived Intangible Assets [Line Items]
Remaining Weighted- Average Useful Life (In years)	0 years
Gross Carrying Amount	$ 2,907	2,917
Accumulated Amortization	(2,907)	(2,917)
Total	$ 0	$ 0