Goodwill And Other Intangibles - Accumulated Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Accumulated impairment losses	$ 4,399,676	$ 4,303,767
Branded Pharmaceuticals
Goodwill [Line Items]
Accumulated impairment losses	855,810	855,810
Sterile Injectables
Goodwill [Line Items]
Accumulated impairment losses	0	0
Generic Pharmaceuticals
Goodwill [Line Items]
Accumulated impairment losses	3,077,549	2,991,549
International Pharmaceuticals
Goodwill [Line Items]
Accumulated impairment losses	$ 466,317	$ 456,408