Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net revenue	$ 464,662	$ 404,642	$ 963,195	$ 850,762
Cost of goods sold	319,666	296,381	633,244	606,124
Cost of goods sold impairment charges	759	3,012	2,215	56,309
Gross profit	144,237	105,249	327,736	188,329
Selling, general and administrative	80,944	67,281	158,920	151,717
Research and development	45,572	48,016	81,951	101,874
In-process research and development impairment charges	0	0	960	22,787
Intellectual property legal development expenses	3,550	2,511	4,820	6,677
Acquisition, transaction-related and integration expenses	1,787	3,519	4,362	9,551
Charges (gains) related to legal matters, net	1,300	0	5,800	0
Restructuring and other charges	333	2,835	2,381	8,996
Operating income (loss)	10,751	(18,913)	68,542	(113,273)
Other (expense) income:
Interest expense, net	(36,669)	(43,886)	(76,568)	(87,167)
Foreign exchange gain (loss), net	3,466	8,311	(1,715)	2,847
Gain (loss) on sale of international businesses, net	123	(1,888)	123	6,930
Other income, net	571	149	1,204	1,256
Total other expense, net	(32,509)	(37,314)	(76,956)	(76,134)
Loss before income taxes	(21,758)	(56,227)	(8,414)	(189,407)
Provision for (benefit from) income taxes	2,186	(5,701)	(105,987)	(14,129)
Net (loss) income	(23,944)	(50,526)	97,573	(175,278)
Less: Net loss attributable to non-controlling interests	11,948	33,624	5,498	110,495
Net (loss) income attributable to Amneal Pharmaceuticals, Inc.	$ (11,996)	$ (16,902)	$ 103,071	$ (64,783)
Net (loss) earnings per share attributable to Amneal Pharmaceuticals, Inc.'s common stockholders:
Class A and Class B-1 basic (in usd per share)	$ (0.08)	$ (0.13)	$ 0.70	$ (0.51)
Class A and Class B-1 diluted (in usd per share)	$ (0.08)	$ (0.13)	$ 0.69	$ (0.51)
Weighted-average common shares outstanding:
Class A and Class B-1 basic (in shares)	147,392	128,016	147,286	127,852
Class A and Class B-1 diluted (in shares)	147,392	128,016	148,309	127,852