SEGMENT INFORMATION, Segment Information Reconciled to Consolidated Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Total revenues	$ 225,508	$ 143,096
Cost of revenues	122,918	83,862
Selling, general and administrative	44,298	50,160
Research and development	19,022	14,962
Patent litigation	1,319	960
Income (loss) before income taxes	(17,494)	(10,705)
Corporate and Other
Segment Reporting Information [Line Items]
Selling, general and administrative	25,706	31,018
Income (loss) before income taxes	(81,151)	(34,875)
Impax Generics
Segment Reporting Information [Line Items]
Total revenues	170,079	128,741
Impax Generics \| Operating Segments
Segment Reporting Information [Line Items]
Total revenues	170,079	128,741
Cost of revenues	110,122	76,472
Selling, general and administrative	4,774	4,286
Research and development	14,595	10,863
Patent litigation	114	778
Income (loss) before income taxes	40,474	36,342
Impax Specialty Pharma
Segment Reporting Information [Line Items]
Total revenues	55,429	14,355
Impax Specialty Pharma \| Operating Segments
Segment Reporting Information [Line Items]
Total revenues	55,429	14,355
Cost of revenues	12,796	7,390
Selling, general and administrative	13,818	14,856
Research and development	4,427	4,099
Patent litigation	1,205	182
Income (loss) before income taxes	$ 23,183	$ (12,172)

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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