License And Collaboration Agreements	12 Months Ended
Dec. 31, 2016
License And Collaboration Agreements [Abstract]
LICENSE AND COLLABORATION AGREEMENTS	NOTE 11. LICENSE AND COLLABORATION AGREEMENTS Our subsidiaries have entered into certain license, collaboration and discovery agreements with third parties for product development. These agreements require our subsidiaries to share in the development costs of such products and the third parties grant marketing rights to our subsidiaries for such products. The Company and its subsidiaries are generally required to make upfront payments as well as other payments upon successful completion of regulatory or sales milestones. In addition, these agreements generally require our subsidiaries to pay royalties on sales of the products arising from these agreements. These agreements generally permit termination by our subsidiaries with no significant continuing obligation. Novartis AG, Novartis Consumer Health, Inc. and Sandoz, Inc. The Company had exclusive U.S. marketing rights to Voltaren^® Gel through June 30, 2016 pursuant to a License and Supply Agreement entered into in 2008 with and among Novartis AG and Novartis Consumer Health, Inc. Effective March 1, 2015, Novartis Consumer Health, Inc. assigned the 2008 Voltaren^® Gel Agreement to its affiliate, Sandoz, Inc. On December 11, 2015, the Company, Novartis AG and Sandoz entered into a new License and Supply Agreement, the 2015 Voltaren^® Gel Agreement, whereby the Company licensed exclusive U.S. marketing and license rights to commercialize Voltaren^® Gel and the exclusive right to launch an authorized generic of Voltaren^® Gel, effective July 1, 2016. Pursuant to the 2015 Voltaren^® Gel Agreement, the former 2008 Voltaren^® Gel Agreement expired on June 30, 2016 in accordance with its terms. The 2015 Voltaren^® Gel Agreement became effective on July 1, 2016 and is accounted for as a business combination as of the effective date. Refer to Note 5. Acquisitions for further information. The initial term of the 2015 Voltaren^®Gel Agreement will expire on June 30, 2023 with an automatic extension of the term for one year thereafter unless a written notice of non-extension is provided at least six months in advance of termination. Voltaren^® Gel royalties incurred during the six months ended June 30, 2016 and the years ended December 31, 2015 and 2014 were $11.9 million, $30.0 million and $30.0 million, respectively. Any payments related to the period after July 1, 2016, the effective date of the 2015 Voltaren^® Gel Agreement, are recorded against the contingent consideration liability and changes in fair value are recorded in earnings (Refer to Note 7. Fair Value Measurements for further information). Under the 2008 Voltaren^® Gel Agreement, which was effective through June 30, 2016, the Company agreed (i) to make certain guaranteed minimum annual royalty payments beginning in the fourth year of the 2008 Voltaren^® Gel Agreement (2008 Guaranteed Minimum Annual Royalty Payment), (ii) to expend a minimum amount of annual advertising and promotional expenses (A&P Expenditures) on the commercialization of Voltaren^® Gel and (iii) to perform a minimum number of face-to-face discussions with physicians and other health care practitioners (Details), each subject to certain limitations set forth in the 2008 Voltaren^® Gel Agreement, including the requirement that a third party generic equivalent product not be launched. Under the 2015 Voltaren^® Gel Agreement, the Company agreed to make certain guaranteed minimum annual royalty payments (2015 Guaranteed Minimum Annual Royalty Payment) subject to certain limitations set forth in the 2015 Voltaren^® Gel Agreement, including the requirement that a third party generic equivalent product is not launched. In March 2016, Amneal Pharmaceuticals LLC (Amneal) launched a generic equivalent of Voltaren^® Gel and, therefore, the Company’s obligations to make the 2008 Guaranteed Minimum Annual Royalty Payment, to expend A&P Expenditures and to perform Details for the remainder of the term of the 2008 Voltaren^® Gel Agreement terminated as of the date of the launch of the generic equivalent product by Amneal. In addition, the Company’s obligation to make the 2015 Guaranteed Minimum Annual Royalty Payment also terminated. Strakan International Limited In August 2009, we entered into a License and Supply Agreement with Strakan International Limited, a subsidiary of ProStrakan Group plc. (ProStrakan), which was subsequently acquired by Kyowa Hakko Kirin Co. Ltd., for the exclusive right to commercialize Fortesta^® Gel in the U.S. (the ProStrakan Agreement). Fortesta^® Gel is a patented 2% testosterone transdermal gel for testosterone replacement therapy in male hypogonadism. A metered dose delivery system permits accurate dose adjustment to increase the ability to individualize patient treatment. The Company received FDA approval for Fortesta^® Gel in December 2010, which triggered a one-time approval milestone to ProStrakan for $12.5 million. The approval milestone was recorded as an intangible asset and is being amortized into Cost of revenues on a straight-line basis over its estimated useful life. An additional milestone payment of $5.0 million was triggered during the fourth quarter of 2015 pursuant to the terms of the ProStrakan Agreement. The milestone was recorded as an intangible asset and is being amortized into Cost of revenue. ProStrakan could potentially receive up to approximately $150.0 million in additional payments linked to the achievement of future commercial milestones related to Fortesta^® Gel. ProStrakan will exclusively supply Fortesta^®Gel to Endo at a supply price based on a percentage of annual net sales subject to a minimum floor price as defined in the ProStrakan Agreement. Endo may terminate the ProStrakan Agreement upon six months prior written notice at no cost to the Company. Grünenthal GmbH In December 2007, we entered into a License, Development and Supply Agreement (the Grünenthal Agreement) with Grünenthal for the exclusive clinical development and commercialization rights in Canada and the U.S. for an oral formulation of OPANA^® ER, with INTAC^® technology. In December 2011, the FDA approved a formulation of OPANA^® ER with INTAC^® technology, which is called OPANA^® ER. In the fourth quarter of 2011, the Company capitalized a one-time approval milestone to Grünenthal for $4.9 million. We are amortizing this intangible asset into Cost of revenues over its estimated useful life. In the fourth quarter of 2013, the Company recorded an additional $10.4 million as Cost of Revenues related to a commercial milestone. Additional amounts of approximately €53.9 million (approximately $56.7 million at December 31, 2016) may become due upon achievement of additional future predetermined regulatory and commercial milestones. Endo will also make payments to Grünenthal based on net sales of any such product or products commercialized under this agreement, including the formulation of OPANA^® ER approved by the FDA in December 2011. Effective December 19, 2012, the Company and Grünenthal amended the Grünenthal Agreement whereby the Company became responsible for planning of packaging of finished product and certain other routine packaging quality obligations and Grünenthal agreed to reimburse the Company for the third-party costs incurred related to packaging as well as pay the Company a periodic packaging fee. The amendment also changed certain of the terms with respect to the floor price required to be paid by the Company in consideration for product supplied by Grünenthal. On February 18, 2014, the Company and Grünenthal amended the Grünenthal Agreement to define the responsibilities of the parties for certain additional clinical work to be performed for OPANA^® ER. BioSpecifics Technologies Corp. The Company, through an affiliate, is party to a development and license agreement, as amended (the BioSpecifics Agreement) with BioSpecifics Technologies Corp. (BioSpecifics). The BioSpecifics Agreement was originally entered into in June 2004 to obtain exclusive worldwide rights to develop, market and sell certain products containing BioSpecifics’ enzyme, which we refer to as XIAFLEX^®. The Company’s licensed rights concern the development and commercialization of products, other than dermal formulations labeled for topical administration, and currently, the Company’s licensed rights cover the indications of Dupuytren’s Contracture (DC), Dupuytren’s Nodules, Peyronie’s Disease (PD), Adhesive Capsulitis, cellulite, canine lipomas, Plantar Fibromatosis and Lateral Hip Fat. Auxilium may further expand the BioSpecifics Agreement, at its option, to cover other indications as they are developed by the Company or BioSpecifics. Under the BioSpecifics Agreement, we are responsible, at our own cost and expense, for developing the formulation and finished dosage form of products and arranging for the clinical supply of products. BioSpecifics is currently conducting exploratory clinical trials evaluating XIAFLEX^® as a treatment for a number of conditions, including lipomas in humans and uterine fibroids. The Company has the option to license development and marketing rights to these indications based on a full analysis of the data from the clinical trials, which would transfer responsibility for the future development costs to the Company and trigger opt-in payments and potential future milestone and royalty payments to BioSpecifics. The BioSpecifics Agreement extends, on a country-by-country and product-by-product basis, for the longer of the patent life, the expiration of any regulatory exclusivity period or twelve years from the effective date. Either party may terminate the BioSpecifics Agreement as a result of the other party’s breach or bankruptcy. We may terminate the BioSpecifics Agreement with 90 days’ written notice. We must pay BioSpecifics on a country-by-country and product-by-product basis a specified percentage within a range of 5% to 15% of net sales for products covered by the BioSpecifics Agreement. This royalty applies to net sales by the Company or its sublicensees, including Asahi Kasei Pharma Corporation (Asahi Kasei) and Swedish Orphan Biovitrum AB (Sobi). We are also obligated to pay a percentage of any future regulatory or commercial milestone payments received from such sublicensees. In addition, the Company and its affiliates pay BioSpecifics an amount equal to a specified mark-up on certain cost of goods related to supply of XIAFLEX^® (which mark-up is capped at a specified percentage within the range of 5% to 15% of the cost of goods of XIAFLEX^®) for products sold by the Company and its affiliates. XIAFLEX^® Out-license Agreements We are party to certain out-licensing agreements with Asahi Kasei and Sobi (the XIAFLEX^® Sublicensees), pursuant to which the XIAFLEX^® Sublicensees have marketing, development and/or commercial rights for XIAFLEX^® and XIAPEX^® (the European Union trade name for XIAFLEX^®) in a variety of countries outside of the U.S. The applicable royalty percentages related to these agreements increase from tier to tier upon the achievement of a specified threshold of aggregate annual net sales of the licensed product and may decrease if a generic is marketed in the applicable territory. Pursuant to each of these out-licensing agreements, the Company will be responsible for all clinical and commercial drug manufacturing and supply and, in certain cases, for development costs. The Japanese Ministry of Health, Labour and Welfare approved XIAFLEX^® for manufacturing and marketing in Japan on July 3, 2015 for the indication of Dupuytren's Contracture with a palpable cord and was subsequently listed on the Japanese National Health Insurance drug price standard on August 31, 2015. The Company’s partner, Asahi Kasei Pharma Corporation, commercially launched the product in Japan in September 2015. Under the terms of the Asahi Kasei agreement, Endo received a $20.0 million gross milestone payment in October 2015 as a result of the first commercial sale of XIAFLEX^® in Japan. The Company is recognizing the $20.0 million of milestone revenue on a straight-line basis over the remaining term of the license agreement. We were party to an out-licensing agreement with Actelion Pharmaceuticals Ltd. (Actelion) to develop, supply and commercialize XIAFLEX^® in Canada and Australia. On July 1, 2016, the parties mutually agreed to terminate the collaboration for Canada and agreed upon certain transition services to be provided by Actelion until approval of the transfer of the drug identification number by the regulatory authority in Canada to the Company. For Australia, the collaboration agreement remained in effect until a new agreement was finalized. In consideration for the rights returned to the Company by Actelion, Endo made a cash payment of $5.5 million in July 2016 to terminate the agreement and the transaction was treated as an asset acquisition. For Australia, we entered into a new out-licensing agreement with Actelion Pharmaceuticals Australia PTY in December 2016, pursuant to which Actelion obtained marketing and commercial rights for XIAFLEX^® in Australia and New Zealand. BioDelivery Sciences International, Inc. The Company was party to a worldwide license and development agreement with BDSI for the exclusive rights to develop and commercialize BELBUCA™ (buprenorphine HCl) Buccal Film. The NDA for BELBUCA™ was submitted in December 2014 and accepted by the FDA in February 2015. On October 23, 2015, the FDA approved BELBUCA™ for the management of severe pain and BELBUCA™ became commercially available in the U.S. during February 2016. As a result of the FDA approval of BELBUCA™, the Company capitalized a one-time approval milestone payment to BioDelivery for $44.0 million in the fourth quarter of 2015. In December 2016, Endo announced that it was returning BELBUCA^TMto BDSI and this transaction closed on January 6, 2017. As a result of this announcement, the Company incurred restructuring and impairment charges during the fourth quarter of 2016 (Refer to Note 4. Restructuring for further information).

NOTE 11. LICENSE AND COLLABORATION AGREEMENTS

Our subsidiaries have entered into certain license, collaboration and discovery agreements with third parties for product development. These agreements require our subsidiaries to share in the development costs of such products and the third parties grant marketing rights to our subsidiaries for such products.

The Company and its subsidiaries are generally required to make upfront payments as well as other payments upon successful completion of regulatory or sales milestones. In addition, these agreements generally require our subsidiaries to pay royalties on sales of the products arising from these agreements. These agreements generally permit termination by our subsidiaries with no significant continuing obligation.

Novartis AG, Novartis Consumer Health, Inc. and Sandoz, Inc.

The Company had exclusive U.S. marketing rights to Voltaren^® Gel through June 30, 2016 pursuant to a License and Supply Agreement entered into in 2008 with and among Novartis AG and Novartis Consumer Health, Inc. Effective March 1, 2015, Novartis Consumer Health, Inc. assigned the 2008 Voltaren^® Gel Agreement to its affiliate, Sandoz, Inc. On December 11, 2015, the Company, Novartis AG and Sandoz entered into a new License and Supply Agreement, the 2015 Voltaren^® Gel Agreement, whereby the Company licensed exclusive U.S. marketing and license rights to commercialize Voltaren^® Gel and the exclusive right to launch an authorized generic of Voltaren^® Gel, effective July 1, 2016. Pursuant to the 2015 Voltaren^® Gel Agreement, the former 2008 Voltaren^® Gel Agreement expired on June 30, 2016 in accordance with its terms. The 2015 Voltaren^® Gel Agreement became effective on July 1, 2016 and is accounted for as a business combination as of the effective date. Refer to Note 5. Acquisitions for further information. The initial term of the 2015 Voltaren^®Gel Agreement will expire on June 30, 2023 with an automatic extension of the term for one year thereafter unless a written notice of non-extension is provided at least six months in advance of termination. Voltaren^® Gel royalties incurred during the six months ended June 30, 2016 and the years ended December 31, 2015 and 2014 were $11.9 million, $30.0 million and $30.0 million, respectively. Any payments related to the period after July 1, 2016, the effective date of the 2015 Voltaren^® Gel Agreement, are recorded against the contingent consideration liability and changes in fair value are recorded in earnings (Refer to Note 7. Fair Value Measurements for further information).

Under the 2008 Voltaren^® Gel Agreement, which was effective through June 30, 2016, the Company agreed (i) to make certain guaranteed minimum annual royalty payments beginning in the fourth year of the 2008 Voltaren^® Gel Agreement (2008 Guaranteed Minimum Annual Royalty Payment), (ii) to expend a minimum amount of annual advertising and promotional expenses (A&P Expenditures) on the commercialization of Voltaren^® Gel and (iii) to perform a minimum number of face-to-face discussions with physicians and other health care practitioners (Details), each subject to certain limitations set forth in the 2008 Voltaren^® Gel Agreement, including the requirement that a third party generic equivalent product not be launched. Under the 2015 Voltaren^® Gel Agreement, the Company agreed to make certain guaranteed minimum annual royalty payments (2015 Guaranteed Minimum Annual Royalty Payment) subject to certain limitations set forth in the 2015 Voltaren^® Gel Agreement, including the requirement that a third party generic equivalent product is not launched. In March 2016, Amneal Pharmaceuticals LLC (Amneal) launched a generic equivalent of Voltaren^® Gel and, therefore, the Company’s obligations to make the 2008 Guaranteed Minimum Annual Royalty Payment, to expend A&P Expenditures and to perform Details for the remainder of the term of the 2008 Voltaren^® Gel Agreement terminated as of the date of the launch of the generic equivalent product by Amneal. In addition, the Company’s obligation to make the 2015 Guaranteed Minimum Annual Royalty Payment also terminated.

Strakan International Limited

In August 2009, we entered into a License and Supply Agreement with Strakan International Limited, a subsidiary of ProStrakan Group plc. (ProStrakan), which was subsequently acquired by Kyowa Hakko Kirin Co. Ltd., for the exclusive right to commercialize Fortesta^® Gel in the U.S. (the ProStrakan Agreement). Fortesta^® Gel is a patented 2% testosterone transdermal gel for testosterone replacement therapy in male hypogonadism. A metered dose delivery system permits accurate dose adjustment to increase the ability to individualize patient treatment.

The Company received FDA approval for Fortesta^® Gel in December 2010, which triggered a one-time approval milestone to ProStrakan for $12.5 million. The approval milestone was recorded as an intangible asset and is being amortized into Cost of revenues on a straight-line basis over its estimated useful life. An additional milestone payment of $5.0 million was triggered during the fourth quarter of 2015 pursuant to the terms of the ProStrakan Agreement. The milestone was recorded as an intangible asset and is being amortized into Cost of revenue. ProStrakan could potentially receive up to approximately $150.0 million in additional payments linked to the achievement of future commercial milestones related to Fortesta^® Gel.

ProStrakan will exclusively supply Fortesta^®Gel to Endo at a supply price based on a percentage of annual net sales subject to a minimum floor price as defined in the ProStrakan Agreement. Endo may terminate the ProStrakan Agreement upon six months prior written notice at no cost to the Company.

Grünenthal GmbH

In December 2007, we entered into a License, Development and Supply Agreement (the Grünenthal Agreement) with Grünenthal for the exclusive clinical development and commercialization rights in Canada and the U.S. for an oral formulation of OPANA^® ER, with INTAC^® technology. In December 2011, the FDA approved a formulation of OPANA^® ER with INTAC^® technology, which is called OPANA^® ER.

In the fourth quarter of 2011, the Company capitalized a one-time approval milestone to Grünenthal for $4.9 million. We are amortizing this intangible asset into Cost of revenues over its estimated useful life. In the fourth quarter of 2013, the Company recorded an additional $10.4 million as Cost of Revenues related to a commercial milestone. Additional amounts of approximately €53.9 million (approximately $56.7 million at December 31, 2016) may become due upon achievement of additional future predetermined regulatory and commercial milestones. Endo will also make payments to Grünenthal based on net sales of any such product or products commercialized under this agreement, including the formulation of OPANA^® ER approved by the FDA in December 2011.

Effective December 19, 2012, the Company and Grünenthal amended the Grünenthal Agreement whereby the Company became responsible for planning of packaging of finished product and certain other routine packaging quality obligations and Grünenthal agreed to reimburse the Company for the third-party costs incurred related to packaging as well as pay the Company a periodic packaging fee. The amendment also changed certain of the terms with respect to the floor price required to be paid by the Company in consideration for product supplied by Grünenthal. On February 18, 2014, the Company and Grünenthal amended the Grünenthal Agreement to define the responsibilities of the parties for certain additional clinical work to be performed for OPANA^® ER.

BioSpecifics Technologies Corp.

The Company, through an affiliate, is party to a development and license agreement, as amended (the BioSpecifics Agreement) with BioSpecifics Technologies Corp. (BioSpecifics). The BioSpecifics Agreement was originally entered into in June 2004 to obtain exclusive worldwide rights to develop, market and sell certain products containing BioSpecifics’ enzyme, which we refer to as XIAFLEX^®. The Company’s licensed rights concern the development and commercialization of products, other than dermal formulations labeled for topical administration, and currently, the Company’s licensed rights cover the indications of Dupuytren’s Contracture (DC), Dupuytren’s Nodules, Peyronie’s Disease (PD), Adhesive Capsulitis, cellulite, canine lipomas, Plantar Fibromatosis and Lateral Hip Fat. Auxilium may further expand the BioSpecifics Agreement, at its option, to cover other indications as they are developed by the Company or BioSpecifics.

Under the BioSpecifics Agreement, we are responsible, at our own cost and expense, for developing the formulation and finished dosage form of products and arranging for the clinical supply of products. BioSpecifics is currently conducting exploratory clinical trials evaluating XIAFLEX^® as a treatment for a number of conditions, including lipomas in humans and uterine fibroids. The Company has the option to license development and marketing rights to these indications based on a full analysis of the data from the clinical trials, which would transfer responsibility for the future development costs to the Company and trigger opt-in payments and potential future milestone and royalty payments to BioSpecifics.

The BioSpecifics Agreement extends, on a country-by-country and product-by-product basis, for the longer of the patent life, the expiration of any regulatory exclusivity period or twelve years from the effective date. Either party may terminate the BioSpecifics Agreement as a result of the other party’s breach or bankruptcy. We may terminate the BioSpecifics Agreement with 90 days’ written notice.

We must pay BioSpecifics on a country-by-country and product-by-product basis a specified percentage within a range of 5% to 15% of net sales for products covered by the BioSpecifics Agreement. This royalty applies to net sales by the Company or its sublicensees, including Asahi Kasei Pharma Corporation (Asahi Kasei) and Swedish Orphan Biovitrum AB (Sobi). We are also obligated to pay a percentage of any future regulatory or commercial milestone payments received from such sublicensees. In addition, the Company and its affiliates pay BioSpecifics an amount equal to a specified mark-up on certain cost of goods related to supply of XIAFLEX^® (which mark-up is capped at a specified percentage within the range of 5% to 15% of the cost of goods of XIAFLEX^®) for products sold by the Company and its affiliates.

XIAFLEX^® Out-license Agreements

We are party to certain out-licensing agreements with Asahi Kasei and Sobi (the XIAFLEX^® Sublicensees), pursuant to which the XIAFLEX^® Sublicensees have marketing, development and/or commercial rights for XIAFLEX^® and XIAPEX^® (the European Union trade name for XIAFLEX^®) in a variety of countries outside of the U.S. The applicable royalty percentages related to these agreements increase from tier to tier upon the achievement of a specified threshold of aggregate annual net sales of the licensed product and may decrease if a generic is marketed in the applicable territory. Pursuant to each of these out-licensing agreements, the Company will be responsible for all clinical and commercial drug manufacturing and supply and, in certain cases, for development costs.

The Japanese Ministry of Health, Labour and Welfare approved XIAFLEX^® for manufacturing and marketing in Japan on July 3, 2015 for the indication of Dupuytren's Contracture with a palpable cord and was subsequently listed on the Japanese National Health Insurance drug price standard on August 31, 2015. The Company’s partner, Asahi Kasei Pharma Corporation, commercially launched the product in Japan in September 2015. Under the terms of the Asahi Kasei agreement, Endo received a $20.0 million gross milestone payment in October 2015 as a result of the first commercial sale of XIAFLEX^® in Japan. The Company is recognizing the $20.0 million of milestone revenue on a straight-line basis over the remaining term of the license agreement.

We were party to an out-licensing agreement with Actelion Pharmaceuticals Ltd. (Actelion) to develop, supply and commercialize XIAFLEX^® in Canada and Australia. On July 1, 2016, the parties mutually agreed to terminate the collaboration for Canada and agreed upon certain transition services to be provided by Actelion until approval of the transfer of the drug identification number by the regulatory authority in Canada to the Company. For Australia, the collaboration agreement remained in effect until a new agreement was finalized. In consideration for the rights returned to the Company by Actelion, Endo made a cash payment of $5.5 million in July 2016 to terminate the agreement and the transaction was treated as an asset acquisition. For Australia, we entered into a new out-licensing agreement with Actelion Pharmaceuticals Australia PTY in December 2016, pursuant to which Actelion obtained marketing and commercial rights for XIAFLEX^® in Australia and New Zealand.

BioDelivery Sciences International, Inc.

The Company was party to a worldwide license and development agreement with BDSI for the exclusive rights to develop and commercialize BELBUCA™ (buprenorphine HCl) Buccal Film. The NDA for BELBUCA™ was submitted in December 2014 and accepted by the FDA in February 2015. On October 23, 2015, the FDA approved BELBUCA™ for the management of severe pain and BELBUCA™ became commercially available in the U.S. during February 2016. As a result of the FDA approval of BELBUCA™, the Company capitalized a one-time approval milestone payment to BioDelivery for $44.0 million in the fourth quarter of 2015.

In December 2016, Endo announced that it was returning BELBUCA^TMto BDSI and this transaction closed on January 6, 2017. As a result of this announcement, the Company incurred restructuring and impairment charges during the fourth quarter of 2016 (Refer to Note 4. Restructuring for further information).