Segment Results - Schedule of Reportable Segments Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			4
Total net revenues from external customers	$ 634,860	$ 729,426	$ 2,142,853	$ 2,149,564
Total segment adjusted income (loss) from continuing operations before income tax	308,117	344,918	1,089,584	1,033,782
Branded Pharmaceuticals
Segment Reporting Information [Line Items]
Certain legal costs		14,400		49,300
Total net revenues from external customers	223,682	217,313	557,276	629,851
Total segment adjusted income (loss) from continuing operations before income tax	120,368	105,864	267,964	302,682
Sterile Injectables
Segment Reporting Information [Line Items]
Total net revenues from external customers	251,393	263,635	906,997	777,963
Total segment adjusted income (loss) from continuing operations before income tax	190,498	197,974	696,147	566,345
Generic Pharmaceuticals
Segment Reporting Information [Line Items]
Certain legal costs		100		1,000
Total net revenues from external customers	135,508	218,012	602,670	654,322
Total segment adjusted income (loss) from continuing operations before income tax	(13,428)	29,569	91,293	129,702
International Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	24,277	30,466	75,910	87,428
Total segment adjusted income (loss) from continuing operations before income tax	$ 10,679	$ 11,511	$ 34,180	$ 35,053