Segment Results - Schedule Of Reportable Segments Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) Reportable_Business_Segments	Mar. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Reportable_Business_Segments	4
Total net revenues from external customers	$ 720,411	$ 700,527
Total segment adjusted income from continuing operations before income tax	337,283	351,257
Branded Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	203,525	200,235
Total segment adjusted income from continuing operations before income tax	79,008	93,814
Sterile Injectables
Segment Reporting Information [Line Items]
Total net revenues from external customers	270,048	215,854
Total segment adjusted income from continuing operations before income tax	196,183	169,445
Generic Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	218,526	249,240
Total segment adjusted income from continuing operations before income tax	49,997	74,280
International Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	28,312	35,198
Total segment adjusted income from continuing operations before income tax	$ 12,095	$ 13,718