Goodwill and Other Intangibles - Accumulated Impairment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Goodwill [Line Items]
Accumulated impairment losses	$ 4,473,883	$ 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	3,142,657	2,991,549
International Pharmaceuticals
Goodwill [Line Items]
Accumulated impairment losses	$ 475,416	$ 456,408