Goodwill and Other Intangibles - Schedule of Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,764,636		$ 4,450,082
Allocation to current segments		$ 0
Effect of currency translation	2,456	(5,446)
Goodwill impairment charges	(171,908)	(680,000)	(288,745)
Goodwill, ending balance	3,595,184	3,764,636
Branded Pharmaceuticals
Goodwill [Roll Forward]
Goodwill, beginning balance	828,818		828,818
Allocation to current segments		0
Effect of currency translation	0	0
Goodwill impairment charges	0	0
Goodwill, ending balance	828,818	828,818
Sterile Injectables
Goodwill [Roll Forward]
Goodwill, beginning balance	2,731,193		0
Allocation to current segments		2,731,193
Effect of currency translation	0	0
Goodwill impairment charges	0	0
Goodwill, ending balance	2,731,193	2,731,193
Generic Pharmaceuticals
Goodwill [Roll Forward]
Goodwill, beginning balance	151,108		3,531,301
Allocation to current segments		(2,731,193)
Effect of currency translation	0	0
Goodwill impairment charges	(151,108)	(649,000)
Goodwill, ending balance	0	151,108
International Pharmaceuticals
Goodwill [Roll Forward]
Goodwill, beginning balance	53,517		$ 89,963
Allocation to current segments		0
Effect of currency translation	2,456	(5,446)
Goodwill impairment charges	(20,800)	(31,000)
Goodwill, ending balance	$ 35,173	$ 53,517

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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